I would have to say I would be B but I not for sure if I am wrong let me know and I will try again.
Answer:
colonies have local rulers while protectorates are considered Independant
Explanation:
A colony is different from protectorate in that a colony has local rulers who are answerable to the main state’s authority, unlike in a protectorate which is considered as an independent state and merely receives protection from a larger and more powerful country.
Answer: It is B, they assured Austria-Hungary that they would have their backs in an invasion of Serbia.
