B E H A C K D F With reliabilities as follows: Subsystem A = 0.97 Subsystem G = 0.71 Subsystem B = 0.88 Subsystem H = 0.85 Subsystem C = 0.79 Subsystem I = 0.94 Subsystem D = 0.82 Subsystem J = 0.82 Subsystem E = 0.63 Subsystem K = 0.997 Subsystem F = 0.796