Instead of Taking an Economics Course,Adam Could Have Taken a History

Multiple Choice

Instead of taking an economics course,Adam could have taken a history course that meets at the exact same time.The total cost of taking the economics course would be

A) the tuition cost for the economics course.
B) the fact that Adam could not take the history course at the same time.
C) the tuition cost for the economics course plus the price of the textbook and a notebook for the economics course.
D) the tuition cost,the cost of the textbook and notebook,and the fact that Adam could not take the history course at the same time.
E) the price of the textbook and a notebook for the economics course.