Convert the Objective Function into a Maximization Function $w=2 y 1+4 y 2+3 y 3$

Multiple Choice

Convert the objective function into a maximization function.
-Minimize $w=2 y 1+4 y 2+3 y 3$
Subject to: $\mathrm{y}_{1}+\mathrm{y}_{2} \geq 14$
$2 \mathrm{y}_{1}+3 \mathrm{y}_{2}+\mathrm{y}_{3} \geq 18$
$\mathrm{y}_{1}+2 \mathrm{y}_{2}+\mathrm{y}_{3} \geq 10$
$\mathrm{y}_{1} \geq 0, \mathrm{y}_{2} \geq 0, \mathrm{y}_{3} \geq 0$

A) Maximize $z=-2 y_{1}-4 y_{2}-3 y_{3}$
B) Maximize $\mathrm{z}=-\mathrm{y}_{1}-\mathrm{y}_{2} \leq 14$
C) Maximize $z=2 y_{1}+4 y_{2}-3 y_{3}$
D) Maximize $z=-2 y_{1}-3 y_{2}-y_{3} \leq 18$