C) Let A and B be two events. Use the axioms of probability to prove the following: 1) P(AnB) > P(A) + P(B) - 1. 2) P(AnBnC) > P(A) + P(B) + P(C) - 2. 3) The probability that one and only one of the events A or B occurs is P(A) + P(B) - 2P(An B)