Aside from the Issue of Duties,what Was Behind Southerners' Fears

Aside from the issue of duties,what was behind southerners' fears of the Tariff of 1828?

A) They worried that it would crush their nascent manufacturing sector.
B) They saw it as an extension of federal power that might also be used to end slavery.
C) They thought Andrew Jackson overstepped the constitutional role of president.
D) They feared it would make cotton production unprofitable.
E) They believed it would encourage retaliation by Britain and other European countries.