Upon meeting Harriet Beecher Stowe, President Lincoln reportedly said, “So this is the little lady who made...?

B. All the other answers are quite illogical. D is definitely out of the question so that leaves us with A,B, and C. U.S. didn't go to war with Mexico because of Uncle Tom's Cabin. So that leaves us with A and B. Everyone knows that Harriet Beecher Stowe had grown up in a family that owned slaves and that she despised slavery. The answer is B.