Sheila conducted an experiment involving a spinner. After 1 trial, the experimental probability for a certain event was 0% . After 10 trials, the experimental probability for the same event was 60%. After 100 trials, the experimental probability was 77% , and after 500 trials, the experimental probability was 74%.
 Select the most likely possibility for the theoretical probability associated with this event.
 A. 0%
 B. 52.75%
 C. 60%
 D. 75%
 Please select the best answer from the choices provided
 A
 B
 C
 D