The Optimal Solution to the Nonlinear Model : Minimize $f(x)=3 X_{3}-20 X_{2}+150$

Multiple Choice

The optimal solution to the nonlinear model : Minimize: $f(x) =3 X_{3}-20 X_{2}+150$ , subject to $X^{3} 0$ and $X$ $\pounds 5$ , is given by $X$ equal to

A) 0
B) 4.4444
C) 2.828
D) 5