Jim filled his dog's bowl with 80 dog food pellets. Starting at 8:00 a.m., Jim's dog ate exactly once an hour, consuming exactly half of the number of dog food pellets remaining in the bowl at each feeding session. What percent of the original 80 pellets were there in the dog's bowl right before the dog began to eat at noon of the same day?
A. 2.75%
B. 3.125%
C. 6.25%
D. 12.5%
E. 20%
A. 2.75%
B. 3.125%
C. 6.25%
D. 12.5%
E. 20%