The marginal cost is the (total, incremental increase in) cost associated with an increase in the activity. Claire is deciding whether to continue studying for an upcoming exam in her economics course. She has already studied quite a bit and knows the stuff pretty well. She already knows to "think at the margin" and thus is considering whether to spend one additional hour studying Part 3: Which of the following captures the marginal benefit associated with Claire's decision to continue studying: (1) her score on the upcoming exam, or (ii) the amount by which her score will increase if she studies for one additional hour? Part 4: Which of the following captures the marginal cost associated with Claire's decision to continue studying : (i) the opportunity cost of the total amount of time she spends studying for the upcoming exam, or (ii) the opportunity cost of the additional hour of studying? transcriptor transcript mel new.docx final upload unoffi....pdf final application fo....pdf