Answer:
B) Settles
Explanation:
A verb is one of the parts of speech in English language. Verbs can be defined as any word that describes an action, occurrence, or state of existence. Some examples of verb are dance, sing, walk, play, run, sit, settle, etc.
In English language, settle refer to a situation in which something comes to a halt or rest i.e becoming static.
In this scenario, the most appropriate form of the word "settle" to be used in filling the blank is settles because the action is attributed to an inanimate or non-living thing and it's a present tense.
Hence, the complete sentence would be written as;
"As fall and winter's chill settles in, thousands of geese soar along the Atlantic flyway."
