$2\mathrm{.}1$ Chapter Questions

Consider the following linear programming model:

Max $x12+x2+3x3$

Subject to:

$x1+x23$

$x1+x21$

$x1,x20$

This problem violates which of the following assumptions?

A$)$ certainty

B$)$ proportionality

C$)$ divisibility

D$)$ linearity

E$)$ integrality