1. How should this sentence be changed?
Have you ever tried horseback riding simply for pleasure or, do you only ride horses for racing competitions?
A. Have you ever tried horseback riding simply, for pleasure or do you only ride horses for racing competitions?
B. Have you ever tried horseback riding simply for, pleasure or do you only ride horses for racing competitions?
C. Have you ever tried horseback riding simply for pleasure, or do you only ride horses for racing competitions?
D. No change needs to be made to this sentence