I have this question from a TOEFL iBT test :
The flexibility of film allows the artist ____ unbridled imagination to the animation of cartoon characters.
with these 4 choices:
(A) to bring
(C) is brought
I am pretty sure that the answer is either
to bring or
bringing, I now both of them is correct, but what is the better ? and how to know that? I mean why there is one of them is better than the other ?