1st answer will get brilints How did the invention of the telegraph help imperial powers develop in the 19th century? A. It convinced leaders that controlling colonies was no longer a valuable activity B. It allowed leaders in different parts of an empire to easily communicate. C. It helped leaders more easily monitor communications within their colonies D. It prevented colonists from organizing independence moviments.

Option B. It allowed leaders in different parts of an empire to easily communicate is the correct one.

Explanation:

Option A is of course not correct as colonial empires tried to preserve their colonies as long as possible due to resources it provided them.

Option B is correct as it enabled the easier way of communication and transmission of information.

Option C is not correct as monitoring of information was not something that was easily achieved when the telegraph was invented.

Option D is not correct as independence movements were not to be shut down that easily.