The correct answer is B. The event that helped give Christianity a permanent place in Ethiopia was the rise of the Zagwe dynasty.
Christianity in Africa is often conceived as a European import that came with colonialism, but this is not the case in Ethiopia. The Kingdom of Aksum was one of the first countries to officially adopt Christianity, when Frumentius of Aksum converted King Ezana, of the Zagwe dynasty, during the 4th century. Today, the Ethiopian Orthodox Church is by far the dominant one, although some Protestant churches have recently gained ground.
