I believe the answer is C, sustain. Hope this helps :)
Answer:
1. Be open and free of judgment
2. actively
3. as class discussions
4. imperative
5. so you can easily refer back to them
6. when writing a letter to a friend
7. an observation
8. respectfully
9. the evidence
10. relate back to the argument
11. results from a scientific study done on human attention span over the course of the past two years
The answer I believe is: B
If I'm correct please vote brainliest (:
Explanation:
A Synonym is a word or a phrase that means exactly or nearly the same as another word of phrase.
A Antonym is a word opposite in meaning to another word.
A Homonym is each of two or more words having the same spelling or pronunciation but different meanings or origins.