Historians Have Attributed All of the Following to Douglas's Motives

Historians have attributed all of the following to Douglas's motives for championing the Kansas-Nebraska Act except

A) a possible presidential bid in 1856.
B) his impulsivity and recklessness.
C) his inability to recognize that Northerners did feel deeply about slavery in the territories.
D) he was deeply invested in seeing slavery allowed in the territories.
E) his lack of foresight.