In a Local Mobile Phone Area,company a Accounts for 60

Multiple Choice

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

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