Answer:
B. Exclusively free people of color,
Explanation:
I do not have your choices of "the following" Here are some reasons I learned: Christianity, empire was too big and became hard to manage, there were many nonromans attacking parts of empire- Goths, the emperors themselves were weak or insane intrigue was rampant.
Your answer here would be the emancipation proclamation Announced by Abraham lincoln
President Abraham Lincoln<span> issued the Emancipation Proclamation on January 1, 1863, as the nation approached its third year of bloody civil war. The proclamation declared "that all persons held as slaves" within the rebellious states "are, and henceforward shall be free." </span>
It sounds like you are talking about the Lusitania. Is that correct?