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!
Answer:
'Use a dictionary or thesaurus'
Explanation:
Because, I don't think there is any synonyms in that sentence for that word or anything that gives you a hint about the unknown word meaning, but, if I would make a guess I would say that the following sentence, "No one else had been clever enough to figure it out" would say something about the 'unknown meaning' word. However, usually if I see a word that I can't find its meaning in the following sentence, I would just look up its meaning or find synonyms of that word.
I can’t talk right now I’m doing hot girl shut