Given the functions k(x) = 5x − 8 and p(x) = x − 4, solve k[p(x)] and select the correct answer below.

Ak[p(x)] = 5x − 12
Bk[p(x)] = 5x − 28
Ck[p(x)] = 5x2 − 12
Dk[p(x)] = 5x2 − 28