Answer:
D. FH
Step-by-step explanation:
Angle G is the smallest, so the side of the triangle opposite that angle will be the shortest. That is the side that does not contain G in its segment name:
FH is the shortest side . . . . choice D
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The attachment shows a triangle with these angle measures drawn to scale. You will note that FH is the shortest side.
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Please be aware that different instances of this question may have different angle measures, or may have answer choices in a different order. The thing to remember is that the lengths of sides have the same ordering (least to greatest) that the angle measures do.