How are the reasons and evidence of an argument similar?

A.
The reasons and evidence show why the argument’s claim is true.
B.
The reasons and evidence state facts in support of the argument’s claim.
C.
The reasons and evidence both directly answer a “how” or “why” question.
D.
The reasons and evidence both ask “how” or “why” the argument’s claim is true.

I think the answer is C

Explanation:

The reasons and evidence both directly answer how or why

relief sculpture - images are set against a flat background.

a coin is a good example: the inscription, the date, and the figure are slightly raised above a flat surface. the ancient egyptians sometimes carved figures into a flat surface.  

pro: they take significantly less time to make and do not require as much tools or skills as free-standing

cons: not nearly as realistic, as it is not fully 3-d, and does not have the details that a free-standing one does.

freestanding sculptures (also called  carved in the round) are not attached to any  background.   they are 3-dimensional  and fully rendered.