MATH 231, MATH 152 or STOR 113 at UNC?

Could anyone explain the difference between these freshman courses? They all fulfill the Calc requirement for the Business School at UNC but is one easier / more difficult than the others? I got a 2 on the AP Calc exam which places me into MATH 231 but since I may want to go into the Business School, I was told that MATH 152 or STOR 113 ‘could’ be better options. Thanks