What event (or events) mainly caused the fall of the British Empire?

A. World War II
B. the colonies rose up and fought back against the empire
C. infighting between the British leaders caused it to implode from within
D. both World War I and World War II
My first choice (a.) was marked as incorrect so my second choice is (b.)

5 answers

I think b is correct.
Thankyou
You're welcome.
B is not the correct answer
D. World War I and World War II