There are 10 brown, 10 black, 10 green, and 10 gold marbles in bag. A student pulled a marble, recorded the color, and placed the marble back in the bag. The table below lists the frequency of each color pulled during the experiment after 40 trials.


Outcome | Frequency
Brown | 13
Black | 9
Green | 7
Gold | 11


Compare the theoretical probability and experimental probability of pulling a gold marble from the bag.
A. The theoretical probability, P(gold), is 25%, and the experimental probability is 27.5%.
B. The theoretical probability, P(gold), is 50%, and the experimental probability is 11.5%.
C. The theoretical probability, P(gold), is 25%, and the experimental probability is 25%.
D. The theoretical probability, P(gold), is 50%, and the experimental probability is 13.0%.