The copy of the Glorious Qur'an in use was standardized during the period of Caliph
Abu Bakr as Siddiq
Umar b. Khattab
Uthman b. Affan
Ali b. Abu Talib
Correct answer is C
Uthman ibn `Affan (c. 579 - 17 July 656) was one of the companions of Islamic prophet, Muhammad. He played a major role in early Islamic history as the third Caliph. ... ` Uthman was an early convert to Islam and is said to have spent a great amount of his wealth on charity. The copy of the glorious Qur'an in use was standardized in his reign.