Researchers agree that currently there is an over-screening for vitamin D deficiency, and overtreating of healthy people who are getting enough vitamin D through diet and sun exposure. They believe that from an evolutionary standpoint, it doesn’t make sense that higher vitamin D levels would be beneficial to humans. Vitamin D is hard to find in naturally occurring food sources and though we can get vitamin D from the sun, our bodies evolved to create darker skin in the parts of the world that get the most sun. If vitamin D were so critical to humans, then they would not have evolved in this way, to require something that is hard to come by and then evolve in such a way as to make it harder to utilize.
Which of the following is most strongly supported by the information given in the passage?
A. Most people get sufficient vitamin D from naturally occurring food sources and exposure to sunlight.
CorrectB. Higher than required vitamin D levels could have a harmful effect on the human body.
Incorrectdont know about harmful effect of vitamin D
C. Majority of the lighter-skinned people live in parts of the world that get the least sun.
Incorrectcant get this from argument
D. Having darker skin reduces the ability of the body to absorb vitamin D from exposure to the sun.
Incorrectdont know darker skin reduces vitamin D absorption ability
E. The sole purpose of human evolution is to help humans live an easier and healthier life.
Incorrectcant inferred this from argument