Read the sentence mentioned below. Check the tense of the verb. Correct the verb if it is incorrect.

Water boils at 100 degrees celsius.

A. The verb is correct.

B. The verb form is wrong; proper form is: is boiling.

C. The verb form is wrong; proper form is: has been boiling.

D. The verb form is wrong; proper form is: will be boiling.

Answer: Option A