This is the question and the answer options and I believe it is option A i'm not 100 % sure though
Which statement best describes the methods used by Amanda and Billy to increase the time they spent exercising? (1 point)
A. Amanda's method is linear because the number of minutes increased by an equal number every week.
B. Billy's method is linear because the number of minutes increased by an equal factor every week.
C. Both Billy's and Amanda's methods are exponential because the number of minutes increased by an equal factor every week.
D. Both Billy's and Amanda's methods are exponential because the number of minutes increased by an equal number every week.