Concept:The Mahdist Revolt weakened colonial pressure on Ethiopia by occupying European powers elsewhere.
Explanation:The Mahdist Revolt (1881–1899) was led by Muhammad Ahmad al-Mahdi in Sudan.
It forced Britain, Italy, and other colonial powers to redirect their military and financial resources toward suppressing the revolt in Sudan.
As a result, these powers reduced their attention on Ethiopia and its borders.
This diversion created a temporary window for Ethiopia to strengthen its army, centralise its government, and resist European colonial encroachments, such as Italian advances toward the Red Sea region.
Ethiopia did not receive direct military support from the Mahdists, nor did it form a political alliance or union with them.
Therefore, the main effect was that colonial pressure on Ethiopia lessened because European resources were tied up in Sudan.
Answer:B. The diversion of British and Italian resources away from Ethiopia