Question

Black Americans are, on the whole, about twice as likely as White Americans to develop high blood pressure. This likelihood also holds for westernized Black Africans when compared to White Africans. Researchers have hypothesized that this predisposition in westernized Blacks may reflect an interaction between western high-salt diets and genes that adapted to an environmental scarcity of salt.

Answer 1

The correct option is A (The blood pressures of those descended from peoples situated throughout their history in Senegal and Gambia, where salt was always available, are low)

Step-by-step explanation:

Option B only talks about the findings in some areas and does not emphasize on the findings in all areas.

Option C: This option does not have any effect on the hypothesis trying to be proved.

Option D also does not strengthen or weaken the hypothesis, hence it is not the correct answer.

Option E: This option does not make mention of anything relating to the gene and hence does not do anything to the hypothesis.