Easy point to earn

The revenue from selling x shirts is r(x)=12x

The cost of buying x shirt is c(x)=5x+20

The profit from selling x shirts is p(x)=r(x)-c(x)

what is p(x)

A.p(x)=17x+20
B.p(x)=7x20
C.p(x)=17x-20
D.p(x)=7x-20