Which among the following systems is most reliable, A, B, C, or D? Why?

Component 2 R (C.) = 0.95 Component 1 R(C.) = 0.95 A. Component 1 Component 3 Component 2 B. R (C.) = 0.97 R (C,) = 0.97 R(C.) = 0.97 Backup Component 1 R(C.) = 0.92 Backup Component 3 R (C) = 0.92 c. Component 1 R (C,) = 0.95 Component 2 R (C.) = 0.95 Component 3 R (C.) = 0.95 Backup Component 2 R (C.) = 0.93 Backup Component 1 R (C,) = 0.93 k omponent 3 R (C.) = 0.93 D. Component 1 Component 2 Component 3 R (C.) = 0.93 R (C,) = 0.93 R (C.) = 0.93