Cancer is a disease that usually results when A. a person has limited exposure to sunlight. B. mutations cause a person's body cells to divide uncontrollably. C. a person has a severe allergic reaction. D. a bacterium enters the body through a person's skin.
B. Mutations cause a person's body cells to divide uncontrollably. There isn't a signal for cells to stop dividing, so this can cause cancer because cancer cells won't stop dividing without this signal.
