P16 is an example of what type of thing that causes cancer when it stops functiong properly?\nOptions:\n- (A) Toxins\n- (B) edema\n- (C) gene\n- (D) ferns\n- (E) CO 2\n- (F) PDAs\n- (G) HIV\n- (H) albino
Please answer and provide answer explanation.
(C)
Cancer is a disease that occurs when the cell cycle is no longer regulated.

P16 is a regulator of the cell division cycle.

Cancer is a disease that occurs when genes like P16 stop functioning properly.

.

So, the final answer is (C)