They might have gathered data through structures for viewing sky events. They might have had a cultural importance.
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!
The driver admitted to not having a license
Remove any sentences that are off topic or unimportant
Answer:
2
Explanation:
a word or phrase that modifies or qualifies an adjective, verb, or other adverb
