A new disease called Probibeleosus has emerged in Oceania. Though non-fatal, Probibeleosus leads to disfigurement,

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A new disease called Probibeleosus has emerged in Oceania. Though non-fatal, Probibeleosus leads to disfigurement, reduced mobility and chronic pain. Medical researchers have thus far discovered two variants of the disease which they have labeled Probibeleosus-A (P-A) and Probibeleosus-B (P-B). Sex partners and siblings of those with P-A are four times as likely as the general population to have P-A. Sex partners of those with P-B are no more likely than the general population to have P-B, but siblings of those with P-B are over eight times more likely to have the disease than the average person.

Which of the following statements is best supported by the above information?

(A) Of those with P-A their parents would be no more likely than average to have the condition.

(B) Somewhere between one-in-eight and one-in-four people in Oceania have either P-A or P-B.

(C) The sex partners of those who do not have P-A are less likely than average to have P-A.

(D) Those who have never had sex are less likely to have P-B than P-A.

(E) Vulnerability to P-B is more likely hereditary than is vulnerability to P-A.



OA E

Source: Princeton Review