Show me how to solve e. and then evaluate it at x=1

For E. you would plug the 4 into every spot that has an x (4 / 4+2√4 ) you would then simplify the bottom to be 4+4 because 2√4 =4. This leaves you with (4 / 8)
and that simplifies to 1/2. answer should be 1/2

The correct answer is: b