The Optimal Solution to the Nonlinear Model : Maximize $f(x)=3 X_{3}-15 X_{2}+24 X$

Multiple Choice

The optimal solution to the nonlinear model : Maximize: $f(x) =3 X_{3}-15 X_{2}+24 X$ , subject to $X \pounds 2$ , is given by $\mathrm{X}$ equal to

A) 2
B) 1.5
C) 1.333
D) 1.867