Concept:Islamic reform movements in sub-Saharan Africa emerged mainly as a response to the crisis of modernisation during the 20th century.
Explanation:Colonial rule and the rapid growth of modern state structures brought significant social and economic changes to Africa.
Muslim communities soon faced challenges such as political corruption, weak governance, poverty and the introduction of secular education.
These problems created a crisis that made many Muslims seek solutions in religious reform.
Reformers used Islamic values to criticise failed governments, and mosques became important platforms for such criticism.
They also focused on educational reform, training religious scholars and spreading Islamic values throughout society.
Therefore, the growth of the reform movements was not due to any discovered weakness in Islam, changes in its belief system, or language difficulties with Arabic.
It was mainly triggered by the pressure to adapt to a modernising world.
Answer:A. The crisis of modernisation of the 20th century.