Correct option is A
The correct replacement is
(a) gets up.
Explanation:
· The subject
"he" is third-person singular.
· In present simple tense, the verb must take an
–s: gets up
· "Every day" indicates a habitual action, which calls for
present simple tense.
Grammatical Rule Used:
For third-person singular subjects (he, she, it), the verb in present simple tense ends with
–s/es.
He gets up at 5 am.
Incorrect: He get up at 5 am.