Suppose you have a choice of working full-time during the summer or attending summer school full-time. Summer tuition and books are $3,000. If you worked, you could make $5,000. Your rent is $1,000 for summer, regardless of your choice. The opportunity cost of going to summer school is
A) $9,000.
B) $8,000.
C) $5,000.
D) $3,000.
E) None Of The Above