Answer:
Summer "break" not "breaks"
Explanation:
I'm going to assume that this is what the actual question is. If it's just a typo, then sorry but in my answer the subject and the verb don't agree. "Summer" is singular and "breaks" is plural. If I'm not right, then so sorry; it's just that I'm in 9th grade and English is my best subject.
The answer to the question is b
they don't want the workers to hear them