You are better off consuming or producing an additional good or service if .

If the marginal benefit is greater than the marginal cost

The marginal benefit is the amount of satisfaction that you receive when you consume an additional goods or service, meanwhile the marginal cost is the amount of sacrifice that you need to do in order to get that additional good or service.

to put it simply, You better off consuming that additional product if the satisfaction that you get is worth the sacrifice that you make

Answer( optimism );

Iwish i could tell you but you havnt given any answer choices