In "The Legend of Sleepy Hollow," what causes the problem between Ichabod Crane and Brom Bones?

ABoth wish to marry Katrina Van Tassel.

BBoth wish to own Daredevil, the horse.

CBrom Bones scares Ichabod by revealing himself to be the Headless Horseman. D. Brom Bones steals Ichabod's horse, Gunpowder.