Sharon,a Marketing Major,has Her First Economics Test and Her First

Multiple Choice

Sharon,a marketing major,has her first economics test and her first finance test to take tomorrow and she has four hours tonight to allocate to studying the two subjects.The data below show her scores on the two tests based on the time spent studying.(Hint: Studying economics for 0 hours means studying finance for 4 hours. )

-The benefit of spending an extra hour studying economics is

A) the resulting test score.
B) the resulting increase in the test score.
C) the resulting test score divided by hours spent studying.
D) increasing.
E) constant.