Maximize $p = 1.2 x + 1.1 y$ Over the Region Defined by the Inequalities

Multiple Choice

Maximize $p = 1.2 x + 1.1 y$ over the region defined by the inequalities. $$\left\{ \begin{array} { c } 9 x + 8 y \leq 144 \\x + y \leq 17 \\x \geq 0 , y \geq 0\end{array} \right\}$$

A) 20.4
B) 18.7
C) 19.2
D) 19.5
E) 18.4