B L R In a certain circuit (see figure) the probabilities of Gates A, B, C and D closing when the circuit switch is thrown on are given by 0.2, 0.3, 0.4, 0.5, respectively. Assuming that the opening/closing are mutually independent, the probability that the current will flow from point L to point R is closest to: O A: 0.7180 O B: 0.9884 O C: 0.9580 O D: 0.9040 O E: 0.8240