You decide whether to eat one more slice of pizza based on h

You decide whether to eat one more slice of pizza based on how hungry you feel. This statement best represents this economic concept:

Solution

Since the consumer decides whether to eat next slice of pizza based upon how hungry he is, here he is eating by judging the marginal utility of slice of pizza.

Hence this statement represent the economic concept: how much is a decision at the margin.

Hence option fourth is the correct answer.