And I heard a great voice out of heavens saying, Behold, the tabernacle of God is with men, and he will dwell with them, and they shall be his people and God himself shall be with them and be their God. Who heard the great voice behind him?

A.

James

B.

Jesus

C.

John the beloved

D.

The Jesus

Correct answer is C

Bible reference Revelation 21:3.
John the beloved that whole the book of revelation was the one who heard the voice