Rabeh’s greatest challenge after conquering Borno was?

A. normalizing relations with Sokoto Caliphate
B. rebuilding the armed forces
C. reviving the ailing economy
D. safeguarding the religion of Islam.

Correct Answer: Option C

C. reviving the ailing economy

Explanation

Rabeh had an efficient army at that time and his immediate aim certainly did not include establishing any contact with the Sokoto caliphate as he saw himself as another Muslim reformer.