GMAT Practice exam 2 - Sentence Correction

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GMAT Practice exam 2 - Sentence Correction

by lucas211 » Sun Jun 05, 2016 6:29 am
Hello BTG

Would appreciate a little help on the following question:

Image

Thanks in advance

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by OptimusPrep » Sun Jun 05, 2016 9:08 pm
lucas211 wrote:Hello BTG

Would appreciate a little help on the following question:

The first detailed study of magpie attacks in Australia indicates that by the time they had reached adulthood, 98 percent of men and 75 percent of women born in country have been attacked by the birds.

a) by the time they had reached adulthood, 98 percent of men and 75 percent of women born in country have been attacked by the birds.
b) by the time they reach adulthood, 98 percent of men and 75 percent of women, who were born in the country, had been attacked by birds.
c) by the time they reached adulthood, 98 percent of men and 75 percent of the women born in the country had been attacked by the birds.
d) 98 percent of the men and 75 percent of the women that were born in the country were attacked by the birds by the time they reach adulthood.
e) 98 percent of men and 75 percent of women who were born in the country, by the time they reached adulthood had been attacked by birds

Thanks in advance
Options A and B can be eliminated by paying attention to the sequence of the events and the tenses used.
In this case, people reached childhood later than they were born, hence the tense here should be opposite.

Option C does not have any ambiguities

Option D incorrectly uses that to refer to men and women. Who should be used here.
Option E places the modifier incorrectly

Correct Option: C