BACKGROUND INFO: Monthly sales for ABC company can be modeled by the equation S=3000 + 42m, where S=total items sold and m = months

Monthly sales for XYZ company can be modeled by the equation S=2500(1.15)", where S=total items sold and m = months

QUESTION: Which of the following statements is true?

ANSWERS:

A.) ABC currently has greater monthly sales than XYZ but in three months XYZ will have greater monthly sales than

B.) ABC monthly sales are growing exponentially while XYZ monthly sales are growing exponentially while XYZ will have greater monthly sales than ABC

C.) ABC currently has greater monthly sales than XYZ and will continue to have greater monthly sales for the next year (12 month)

D.) Both companies monthly sales are growing exponentially and therefore cannot be compared for future months

Please answer only if you can help :) ​