Answer: Choice D
By the hinge theorem, we know that the opposite side of the given angles will be larger as you increase the angle. Basically think of a door opening. The greater or wide the door is open, the larger the hinge angle leading to a larger distance from door to frame.
We see that angle G = 70 is larger than angle B = 28. So the opposite side HF must be larger than side AC
Note: the hinge theorem only works if we know two pairs of sides are congruent like this