Dr. smith is conducting a study to determine what 9-year-olds know. he believes that the 9-year-olds will advance in knowledge based on instructions. dr. smith's belief is based on

Which best describes the purpose of the south carolina exposition and protest, which was written by john c. calhoun? a) to explain why the south was nullifying the tariff of 1828 b) to describe the ways the tariff of 1828 would southerners c) to persuade northern states to rebel against the federal government d) to ask england for if the south decided to secede from the union