Passage

All humans digest mother’s milk as infants, but until cattle began, being domesticated 10,000 years ago, children once weaned no longer needed to digest milk. As a result, they stopped making the enzyme lactase, which breaks down the sugar lactose into simple sugars. After humans began herding cattle, it because tremendously advantageous to digest milk, and lactose tolerance evolved independently among cattle herders in Europe. the middle East and Africa. Groups not dependent on cattle, such as the Chinese and Thai, remain lactose intolerant.

QUESTION

CSAT

Easy

Comprehension

Prelims 2016

Which among the following is the most logical assumption that can be made from the above passage?

Select an option to attempt

Explanation

Statement A is incorrect. The passage explicitly states that cattle were domesticated 10,000 years ago, making this a fact rather than an assumption.

Statement B is correct. The passage explains how a change in food habits (from relying on milk) led to genetic evolution (lactose tolerance), making this assumption logical.

Statement C is incorrect. The passage does not claim that only lactose-tolerant people can get simple sugars. It only discusses lactose digestion.

Statement D is incorrect. The passage does not suggest that people who are not lactose tolerant cannot digest any dairy product. It only discusses lactose intolerance, not an inability to digest all dairy.

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