A firm has two computer systems available for processing telephone orders. At any given time, system A has a 10% chance of being "down," while system B has just a 5% chance of being "down."A firm has two computer systems available for processing telephone orders. At any given time, system A has a 10% chance of being "down," while system B has just a 5% chance of being "down." the computer systems are independently operate. For a typical telephone order, determine the probability thata. Neither computer system will be operationalb. both computer system will be operationalc. exactly one of the computer system will be operationald. the order can be processed without delay