Ben doesn't want to mow the yard so he asks his sister Stacy for help. Stacy says: "I'll mow for you but you have to do the laundry." Ben no longer has to mow, but instead will stay inside like he wanted due to this ________________.

Group of answer choices

Marginal Cost



Tradeoff

Opportunity-Cost



Alternative

Tradeoff

The correct answer is Opportunity-Cost. By asking Stacy for help with mowing the yard, Ben has created a tradeoff where he no longer has to do the task he dislikes (mowing), but instead has to do the laundry. The opportunity cost for Ben is staying inside, which is what he wanted in the first place.