I would say number 1 because all the others give a sort of Emphasis to the donor, but the question wants the sentence to Emphasize on the donation rather than the donor so number 1
You need to cite evidence when working with an informational text to show your teacher that you're understanding the question.
Answer:
Opportunity cost is the value of the next best thing you give up whenever you make a decision. It is "the loss of potential gain from other alternatives when one alternative is chosen". ... For example, opportunity cost is how much leisure time we give up to work.
Explanation:
hope this helped