5. Let f be twice differentiable on (a,b). If g is an antiderivative of f" on (a,b), then then g ' (x) must equal :
D. f(x) + C, for some C not necessarily 0
E. f"(x) + C, for some C not necessarily 0
Differentiability of Functions is investigated. The response received a rating of "5" from the student who posted the question.