Adiscussion about nullification in the south during the american antebellum period was caused by

The discussion was caused by Congress passing a protective tariff on imported goods.
The protective tariff was created in order to protect local produced goods so they can compete with the price of british goods. This protective tariff eventually led to the economic growth period that known as the Antebellum period in the south.

The answer is a c b d a c b d