Which image illustrates why dark clothing to keep you warm on a cool, sunny day?

Explanation:

I suppose it has to do with the way the diagram is drawn. The heat does not reflect which makes both A and B incorrect.

C would have nothing to do with either reflection or refraction.

That only leaves D which is the answer.

since you're a real machine, your ama is always less than your ima, because you can never totally eliminate friction.