In "Bleeding Kansas" in the Mid-1850s, ____ Was/were Identified with the Proslavery

In "Bleeding Kansas" in the mid-1850s, ____ was/were identified with the proslavery element, and ____ was/were associated with the anti-slavery Free Soilers.

A) Beecher's Bibles; border ruffians
B) John Brown; Preston Brooks
C) the Pottawatomie massacre; the sack of Lawrence
D) the Lecompton Constitution; the New England Immigrant Aid Society
E) Stephen A. Douglas; William Sumner