The standardized written copy of the Quran (Rasm-e-Uthmani) was prepared during the caliphate of:

A) Hazrat Abu Bakr (RA)

B) Hazrat Umar (RA)

C) Hazrat Uthman (RA)

D) Hazrat Ali (RA)

Correct Answer: C) Hazrat Uthman (RA)

Explanation: Hazrat Uthman (RA) standardized the official written text of the Quran.