Abe Cooley, a local handyman, likes to advertise that he will come to your home and do any task you need on KBGA, the local college radio station. The station serves a community of 70,000, and the average quarter-hour persons for KBGA are 9,900. Abe buys 20 spots. What is his number of GRPs:

A. 28.28 GRPs
B. 2,828.57 GRPs
C. 2.82 GRPs
D. 282.86 GRPs
E. 0.28 GRPs