Question

which of the following is a piece of evidence that supports the following claim? the sun is the best source of vitamin d. vitamin d is needed to keep bone and muscle tissue healthy. according to a scientific study, 90% of humans get their vitamin d from the sun. the sun is a heat source.

Explanation:

The claim is that the sun is the best source of vitamin D. The first option talks about the function of vitamin D (keeping bone and muscle tissue healthy), which is not directly related to the sun being the source. The third option says the sun is a heat source, which has no connection to vitamin D. The second option, stating that 90% of humans get their vitamin D from the sun according to a scientific study, directly supports the claim as it provides evidence about the sun being a source (and a major one, as 90% is a high proportion) of vitamin D.

Answer:

According to a scientific study, 90% of humans get their vitamin D from the sun.