Why Did Frederick Douglass Become Disillusioned with the AASS

Why did Frederick Douglass become disillusioned with the AASS?

A) They refused to turn toward violence, which he began to advocate.
B) They seemed to value him more for being a fugitive slave than for his oratory and intelligence.
C) He was upset because the AASS refused to press for the abolition of slavery in foreign countries as well as the United States.
D) He felt that the organization should turn toward the example of France and Spain in abolishing slavery.