The 15th amendment allowed Black men to vote. It was ratified on February 3, 1870.
Troublesome friends are often friends who can cause troubles for different reasons. Friends who get drunk and start breaking the law are one example of this that is quite common. Another is friends who break the law in general, pushing you in a moral and ethical dilemma on whether you should tell on them to the law enforcment.
It convinced many of the American colonists to want break away from Great Britain.
I think it’s B? I’m not 100% sure, so if it’s wrong I’m sorry.