Which sentence uses a verb that agrees with its subject?

a) the post offices in our area opens at 9 a. m.

b) their behavior during the performances was very good.

c) a new book by ruth rendell, the author of many mysteries, arrive in bookstores soon.

d) the dresses on the rack in the back of the department was on sale.

the correct answer is B.

this is proven by the words ‘performances’ and ‘very good’

The correct answer is B i took the test and got an A

Explanation:

first aid for seizures is aimed at keeping the person safe until the seizure stops on its own. stay calm, loosen anything around the person's neck, do not restrain them or put anything in their mouth, clear the area around them, and stay with them after the seizure stops.

hope this !