Solve the problem. 47% of a store's computers come from factory A and the remainder come from factory 1% of computers from factory A a defective while 4% of computers from factory B are defective. If one of the store's computers is selected at random, what is probability that it is defective and from factory B? A) 0.019 B) 0.57 C) 0.04 D) 0.021