Who was the famous Islamic general known for his conquests in Persia?

A. Khalid ibn al-Walid
B. Umar ibn al-Khattab
C. Abu Bakr
D. Ali ibn Abi Talib

Answer: Umar ibn al-Khattab


Additional Information: Umar ibn al-Khattab was instrumental in the Islamic conquests of Persia and the Levant.