The Deadline for Your Research Paper Is Tomorrow and You

The deadline for your research paper is tomorrow and you anticipate you'll need a full day's worth of writing to complete the paper. Unfortunately, you are scheduled to work all day in the cafeteria. You can turn the paper in one day late for a 10 percent penalty or take the day off of work and turn the paper in by the deadline. Losing a day of wages will cost you $90. The marginal cost of turning the paper in on time is:

A) the 10 percent penalty on your final score.
B) $90 in forgone wages.
C) respect from your professor.
D) the 10 percent penalty on your score and $90 in forgone wages.