A. Al-Mahdi
B. Al-Mansur
C. Harun al-Rashid
D. Al-Ma’mun
Submitted by: Engr. Muhammad Maad Raza
The Abbasid Caliphate first centered its government in Kufa, modern-day Iraq, but in 762 the caliph al-Mansur founded the city of Baghdad, near the ancient Babylonian capital city of Babylon and Sassanid city of Ctesiphon.
The correct answer to the question: "Which caliph built Baghdad as the new Abbasid capital?" is "Al-Mansur".