This is an expository prose.
An adverb is an adjective + a verb. Meaning, it's a word that describes what someone/something is doing during the action.
A (whistle) & C (referee) are both nouns - person, place, or thing.
D (red) is just an adjective - describing something
B would make the most sense, it's telling you what the referee does with his whistle.
Hope this helped!
God of Thebes, lead thou the round.
Bacchus, shaker of the ground!
Let us end our revels here;
Lo! Creon our new lord draws near,
Crowned by this strange chance, our king.
What, I marvel, pondering?
