The OC function for a single sampling plan with n=60; c=1 is given by
(a) Pa = (1-p)⁶⁰
(b) p = (1-P) +60p):(1-P)⁵⁹
(c) Pa = 60(1-p)⁵⁹
(d) Pa = 60(1-p)⁶⁰