AMC 12 2008a Problem 14

What is the area of the region defined by the inequality $|3x-18|+|2y+7|\le3$?

$\mathrm{(A)}\ 3 \mathrm{(B)}\ \frac {7}{2} \mathrm{(C)}\ 4 \mathrm{(D)}\ \frac{9}{2} \mathrm{(E)}\ 5$