A computer center has three printers, A, B and C, which print at different speeds. Programs are routed to the first available printer. The probability that the program to printers A, b and C are 0.6, 0.3, 0.1, respectively. Occasionally a printer will jam and destroy a printout. The probability printers A, B and C will jam are 0.01, 0.05, and 0.04 respectively. Your program is destroyed when a printer jams. What is the probability printer A is involved? What is the probability printer B is involved? What is the probability printer C is involved?