A. Hazrat Abu Bakar (R.A)
B. Hazrat Umar (R.A)
C. Hazrat Usman (R.A)
D. Hazrat Ali (R.A)
Explanation:
(632–634) and Umar ( r. 634–644). He led the Muslim conquest of Persia from the Sasanian Empire during 636–642. Sa’d also founded the city of Kufa and served as its first governor in 638–642.