In a Local Cellular Phone Area, Company a Accounts for 60

Multiple Choice

In a local cellular phone area, company A accounts for 60% of the cellular phone market, while company B accounts for the remaining 40% of the market. Of the cellular calls made with company A, 1% of the calls will have some sort of interference, while 2% of the cellular calls with company B will have interference. If a cellular call is selected at random, what is the probability that it will not have interference?

A) 0.14
B) 0.014
C) 0.028
D) 0.986