AMC 12 2002b Problem 2

What is the value of $$(3x - 2)(4x + 1) - (3x - 2)4x + 1$$

when $x=4$?

$\mathrm{(A)}\ 0 \mathrm{(B)}\ 1 \mathrm{(C)}\ 10 \mathrm{(D)}\ 11 \mathrm{(E)}\ 12$