Sentence Correction

When ethnic groups intermarry, it is likely to result in cognitive benefits; indeed, perhaps already having contributed to the Flynn effect, which has been the worldwide rise in average IQ score by as much as three points per decade over most of the past century.

A) When ethnic groups intermarry, it is likely to result in cognitive benefits; indeed, perhaps having contributed to the Flynn effect, which has been

B)The intermarriage of ethnic groups is likely to result in cognitive benefits and may indeed have contributed to the Flynn effect,

C) When ethnic groups intermarry, they are likely to result in cognitive benefits and may indeed have contributed to the Flynn effect, the name given to

D) Ethnic groups that intermarry will likely result in cognitive benefits; indeed, possibly having contributed to the Flynn effect,

E) The intermarriage of ethnic groups, likely to result in cognitive benefits, indeed have possibly contributed to the Flynn effect, the name given to

nchaswal wrote: When ethnic groups intermarry, it is likely to result in cognitive benefits; indeed, perhaps already having contributed to the Flynn effect, which has been the worldwide rise in average IQ score by as much as three points per decade over most of the past century.

A) When ethnic groups intermarry, it is likely to result in cognitive benefits; indeed, perhaps having contributed to the Flynn effect, which has been

B)The intermarriage of ethnic groups is likely to result in cognitive benefits and may indeed have contributed to the Flynn effect,

C) When ethnic groups intermarry, they are likely to result in cognitive benefits and may indeed have contributed to the Flynn effect, the name given to

D) Ethnic groups that intermarry will likely result in cognitive benefits; indeed, possibly having contributed to the Flynn effect,

E) The intermarriage of ethnic groups, likely to result in cognitive benefits, indeed have possibly contributed to the Flynn effect, the name given to

Experts , any replies?

Is the OA C?

nchaswal wrote: When ethnic groups intermarry, it is likely to result in cognitive benefits; indeed, perhaps already having contributed to the Flynn effect, which has been the worldwide rise in average IQ score by as much as three points per decade over most of the past century.

A) When ethnic groups intermarry, it is likely to result in cognitive benefits; indeed, perhaps having contributed to the Flynn effect, which has been

B)The intermarriage of ethnic groups is likely to result in cognitive benefits and may indeed have contributed to the Flynn effect,

C) When ethnic groups intermarry, they are likely to result in cognitive benefits and may indeed have contributed to the Flynn effect, the name given to

D) Ethnic groups that intermarry will likely result in cognitive benefits; indeed, possibly having contributed to the Flynn effect,

E) The intermarriage of ethnic groups, likely to result in cognitive benefits, indeed have possibly contributed to the Flynn effect, the name given to

In A, it lacks a clear referent.
Eliminate A.

C: When ethnic groups intermarry, they are likely to result in cognitive benefits
Here, they seems to refer to ethnic groups, implying that ETHNIC GROUPS can result in cognitive benefits.
Not the intended meaning.
The intended meaning is that THE INTERMARRIAGE of ethnic groups can result in cognitive benefits.
Eliminate C.

D: Ethnic groups..will likely result in cognitive benefits.
Like C, this option asserts that ETHNIC GROUPS can result in cognitive benefits.
Not the intended meaning.
The intended meaning is that THE INTERMARRIAGE of ethnic groups can result in cognitive benefits.
Eliminate D.

In E, the intermarriage (singular) does not agree with have possibly contributed (plural).
Eliminate E.

The correct answer is B.

B)The intermarriage of ethnic groups is likely to result in cognitive benefits and may indeed have contributed to the Flynn effect,

The "have" also indicates plural and thus does not match with the singular - The intermarriage.

Please clarify

have is not the verb here. Verb is "contributed". May-have is the whole phrase which is used to express the possibility. So dont confuse have with the verb.

Panky1986 wrote:B)The intermarriage of ethnic groups is likely to result in cognitive benefits and may indeed have contributed to the Flynn effect,

The "have" also indicates plural and thus does not match with the singular - The intermarriage.

Please clarify

The second verb attributed to intermarriage is may have contributed, which can be singular or plural.
Correct: The intermarriage may have contributed to the Flynn effect.
Correct: The intermarriages may have contributed to the Flynn effect.