Answer:
C. killed an arrogant old man on the road
Explanation:
just took the test, also in the text
They turned and ran when they saw us coming.
Okay, so Adverbs are basically words that modify a verb, adjective, and another adverb.
They answer how, when, where or in what way. They often in in -ly.
In this sentence the adverb would be... amazingly. It modifies the verb hide and it tell us in what way the zebras can hide.
B- This answer makes the most sense with me.