A Survey of Tenure-Track College Faculty at 4-Year Institutions Shows

A survey of tenure-track college faculty at 4-year institutions shows that

A) the fewer hours an instructor spends teaching classes per week, the lower the pay.
B) faculty who teach only graduate students get paid less than those who also teach undergraduates.
C) the more hours an instructor spends teaching classes per week, the lower the pay.
D) the more time an instructor spends doing research, the lower the pay.