As Powerful as the Asante Kingdom Was,why Was It Defeated

As powerful as the Asante kingdom was,why was it defeated by the British?

A) The British fielded a smaller special elite corps of marines.
B) The Asante navy was no match for British gunboats.
C) France, Belgium, and Germany joined forces with the British.
D) Rival chieftains joined the British forces.
E) European diseases destroyed the Asante army.