Given rhe functions k(x) = 5x - 8 and p(x) = x - 4, solve k[p(x)] and select the correct answer below.
A. k[p(x)] = 5x - 12
B. k[p(x)] = 5x - 28
C. k[p(x)] = 5x² - 12
D. k[p(x)] = 5x² - 28​