After Much Consideration,you Have Chosen Ireland Over Spain for Your

After much consideration,you have chosen Ireland over Spain for your Study Abroad program next year.However,the deadline for your final decision is still months away and you may reverse this decision.Which of the following events would prompt you to reverse this decision?

A) The marginal benefit of going to Spain increases.
B) The marginal cost of going to Spain increases.
C) The marginal benefit of going to Ireland increases.
D) The marginal cost of going to Ireland decreases.