<em> I believe it would be </em><em>B. Complex.</em>
Answer:
A. The word "while" helps the reader determine that the character goes to the market at the same time the water is heating.
Explanation:
Indeed the correct answer is
<span>c) small pieces of matter</span>
D. Asking hs peers to explain their reasoning, listening closely, and then giving his view.
This is the proper way to respond to ideas which a person does not agree with, in a group discussion as it gives respect to both parties, and lets both of them learn why one view is given versus another.