Determine Whether (F  G)(x) = X and Whether (G $f ( x ) = x ^ { 2 } + 3 , g ( x ) = \sqrt { x } - 3$

Multiple Choice

Determine whether (f  g) (x) = x and whether (g  f) (x) = x.
- $f ( x ) = x ^ { 2 } + 3 , g ( x ) = \sqrt { x } - 3$

A) Yes, no
B) No, yes
C) Yes, yes
D) No, no