In the 1850s, Adventurer William Walker Became Famous For

In the 1850s, adventurer William Walker became famous for:

A) creating a utopian community in northern California.
B) his proslavery novels that heightened sectionalism.
C) breeding horses in the West.
D) leading filibustering expeditions in South America.
E) defying fellow whites in his native region and becoming a prominent abolitionist.