Answer: option B. x - 2/3
Explanation:
Something is missing in the question.
It seems the question if g [ f(x) ]
If that is so, then you have to find f(x) and use it as input of g(x).
This is:
g [ f(x)] = g [ x - 2]
g [ x - 2] = (x - 2) + 4/3 = x - 2 + 4/3 = x - 2/3, which is the option B.
