Black Americans are, on the whole, about twice as likely

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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.

Which of the following statements about present-day, westernized Black Africans, if true, would most tend to confirm the researchers' hypothesis?

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

(B) The unusually high salt consumption in certain areas of Africa represents a serious health problem.

(C) Because of their blood pressure levels, most White Africans have markedly decreased their salt consumption.

(D) Blood pressures are low among the Yoruba, who, throughout their history, have been situated far inland from sources of sea salt and far south of Saharan salt mines

(E) No significant differences in salt metabolism have been found between those people who have had salt available throughout their history and those who have not.

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by deloitte247 » Sun May 27, 2018 9:04 am

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Option A: Wrong
This statement is presumably wrong because it's assertive of the fact that salts are readily and always available and so it's likely to be consumed than when it's in a scarce clime, it is therefore inconsistent to say the blood pressures of the inhabitants of these countries mentioned and Africans generally are low when in actual fact their salt intake is high.

Option B: Right
Very true. This statement seeks to justify the correlation between African aborigines and the westernized ones who share similar genetic make-up and consequently, would suffer health conditions typical of salt related ailments.

Option C: Wrong
Yes, white Africans generally have marked decrease their consumption of salt albeit, being close to the Mediterranean means salt presence could be more pronounced over there but because of their genetic make-up which is similar to the white Americans they tend to reduce their salt intake to address the health danger it may pose.

Option D: Wrong
This statement is far from the truth. The yoruba tribe in West Africa bears the same environmental situation in terms of salt-diets and its availability. Not due to closeness or to the source point.

Option E: Wrong
There's a significant difference in the metabolic activities between them. From the article, a certain people has as much as twice what the other have in terms of the risk involved which means it'd spread across other bodily activities.