Answer:
C.
Step-by-step explanation:
Hedrick states that "They were going to seek homes in the free west, knowing, they did, that free and slave labor could not both exist and prosper in the same community." This shows that many people who lived in NC were against slavery, however did not want to stay, and due to them not particularly having much power, decided to move somewhere where slavery was not prevalent, or rather illegal due to the Missouri Compromise. It can't be A, due to him not mentioning anything about abolitionists, It can't be B either due to again him not mentioning voting at all, and nor can it be D, evidenced by Hedrick stating that people were moving to the "Free West" and not the North.