Decide What Values of the Variable Cannot Possibly Be Solutions $$( 2 x + 3 ) ^ { 1 / 2 } + ( 4 - x ) ^ { 1 / 2 } = 4$$

Multiple Choice

Decide what values of the variable cannot possibly be solutions for the equation.
- $$( 2 x + 3 ) ^ { 1 / 2 } + ( 4 - x ) ^ { 1 / 2 } = 4$$

A) $\{ 3 \}$
B) $\left\{ 3 , \frac { 11 } { 9 } \right\}$
C) $\{ - 3 \}$
D) $\varnothing$