136 cars were sold during the month of april. 78 had air conditioning and 68 had automatic transmission. 56 had air conditioning only, 46 had automatic transmission only, and 12 had neither of these extras. what is the probability that a randomly selected car had automatic transmission or air conditioning or both? a) 0.1618 b) 0.9118 c) 0.5000 d) 0.7500 e) 0.1774 f) none of the above.