Q: Fact 1: Afirecracker converts chemical energy into sound. Fact 2: Most any other sounds can be frightening or startling. Given the two facts above, what can be startling?

pick from the following.
[A]. firecrackers
[B]. an image
[C]. Saltine crackers
[D]. Wheat crackers
[E]. an object
[F]. sea urchins
[G]. sameness
[H]. hypothyroidism
The answer is:
[A].