A. If (12 P)3 = (123)p, then value of P is infeasible. B. The simplified sum of product form of the Boolean expression is \((P+\vec{Q}+\vec{R}).(P+\vec{Q}+R). (P+Q+\vec{R}) \;is\; (P+\vec{Q}.\vec{R})\). C. The minimum number of D flip-flops needed to design a mod(258) counter is 8. Choose the correct answer from the options given below :