The Death of Elijah Lovejoy in 1837

The death of Elijah Lovejoy in 1837:

A) convinced many northerners that slavery was incompatible with white Americans' liberties.
B) resulted from his leading an anti-abolitionist mob that attacked William Lloyd Garrison.
C) demonstrated that fugitive slaves like Lovejoy faced great dangers while escaping from "slave catchers."
D) was played up by temperance pamphleteers to show the hazards of alcoholism.
E) led Congress to adopt the gag rule in order to prevent the sort of heated arguments that caused his death.