Why Were Some Southerners Surprised by Jackson's Views on Nullification

Why were some southerners surprised by Jackson's views on nullification?

A) He strongly believed that the president should take a backseat when it came to legislative matters, refusing to ever exercise veto power over congressional bills.
B) He refused to openly support nullification throughout his presidency and relied on Calhoun to make any speeches endorsing it for him.
C) He had long believed that states should be able to pick which federal laws they adhere to, but he abandoned this view at the end of his presidency.
D) He agreed with Vice President Calhoun on all other policy matters except nullification, and the pair had a remarkably close working relationship.
E) He was a southern cotton planter who owned many slaves but, upon threats to nullify federal laws, strongly exhibited an ardent sense of nationalism.