Convert the Objective Function into a Maximization Function $\mathrm{w}=\mathrm{y}_{1}+3 \mathrm{y}_{2}+\mathrm{y}_{3}+4 \mathrm{y}_{4}$

Multiple Choice

Convert the objective function into a maximization function.
-Minimize
$\mathrm{w}=\mathrm{y}_{1}+3 \mathrm{y}_{2}+\mathrm{y}_{3}+4 \mathrm{y}_{4}$
Subject to:
$\mathrm{y}_{1}+\mathrm{y}_{2}+\mathrm{y}_{3}+\mathrm{y}_{4} \geq 27$
$2 \mathrm{y}_{1}+2 \mathrm{y}_{2}+\mathrm{y}_{3}+2 \mathrm{y}_{4} \geq 53$
$\mathrm{y}_{1} \geq 0, \mathrm{y}_{2} \geq 0, \mathrm{y}_{3} \geq 0, \mathrm{y}_{4} \geq 0$

A) Maximize $z=y_{1}+3 y_{2}+y_{3}+4 y_{4}-y_{5}$
B) Maximize $z=-y_{1}-3 y_{2}-y_{3}-4 y_{4}$
C) Maximize $z=-2 y_{1}-2 y_{2}-y_{3}-3 y_{4} \leq-53$
D) Maximize $z=-y_{1}-y_{2}-y_{3}-y_{4} \leq-27$