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

Multiple Choice

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

A) $\{ 0,16 \}$
B) $\varnothing$
C) $\{ 0,4 \}$
D) $\{ 0,256 \}$