Q. Meet me . . . . . . . . the library at 4 o'clock. Don't be late.
✅ Correct Answer: (A)
at
Explanation: 'At' indicates specific time, location or position. Hence it is the correct preposition to be used in the sentence.
Explanation by: Team MCQ Buddy
'At' indicates specific time, location or position. Hence it is the correct preposition to be used in the sentence.