Why was John Brown considered a martyr after his raid?

A. He was a radical abolitionist that was willing to give up his life to end slavery.
B. He was a slave owner willing to give up his life to expand slavery.
C. He was willing to give up his life to save the Union.
D. He was willing to give up his life so the South could secede from the Union.

A. He was a radical abolitionist that was willing to give up his life to end slavery.