Shiela 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%