Which of the Following Statements Is True

Which of the following statements is true?

A) The opportunity cost of a decision is equal to the explicit cost in monetary terms.
B) The opportunity cost of a decision is the value of the best foregone alternative.
C) Some economic decisions have zero opportunity cost.
D) The opportunity cost of attending college is the same for all students at the same university but may differ among students at different universities.
E) None of the above statements are true.