Express the Boolean function $F(A,B,C)=A+BC$ as a sum of minterms.

a$.F(A,B,C)=$ sum of minterms $(1,2,5,6)$

b$.F(A,B,C)=$ sum of minterms $(1,2,3,6,7)$

C$.F(A,B,C)=$ sum of minterms $(2,4,5,7)$

d$.F(A,B,C)=$ sum of minterms $(1,4,5,6,7)$