What term was used for a reporter or writer who investigated corporate misdeeds?

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

Where did the constitutional convention take place

Me with this psychology homework, i’m struggling with it.