Help please (10 pts) I think it's C What does "think of concrete examples" mean?

A. It means you come up with as many examples as you can in five minutes.

B. It means your thinking is getting too stiff, like concrete.

C. It means you think about how you can imagine the problem as a concrete block.

D. It means think of a real-life example you can relate to that has to do with what you’re learning.