Matt Pays a $50 a Month Membership Fee at Bruno's

Multiple Choice

Matt pays a $50 a month membership fee at Bruno's Gym. He can exercise at the gym as many times as he wishes. If the membership fee is measured along the vertical axis and the number of times he exercises is measured along the horizontal axis, the graph between his membership fee and the number of times he exercises will

A) start out positively sloped and then, as Matt loses interest, become negatively sloped.
B) be a horizontal line.
C) be negatively sloped.
D) be a vertical line.
E) be positively sloped.