Use the Following Information to Answer the Following Questions

Multiple Choice

Use the following information to answer the following Questions
Play Time is a nursery school for pre-kindergarten children. The school has determined that the following biweekly revenues and costs occur at different levels of enrollment:


-The marginal cost when the twenty-first student enrolls in the school is:

A) $55.
B) $155.
C) $300.
D) $3,045.
E) $3,255.