University budget committee: Athletes experience fewer injuries on artificial-turf athletic fields than on natural-grass fields. Additionally, natural-grass fields are more expensive to maintain than fields made of artificial turf. Nevertheless, this committee recommends replacing the university' s current artificial-turf field with a natural-grass field. Which one of the following, if true, most helps to resolve the apparent discrepancy in the committee's position?
A: The university's current artificial-turf athletic field has required extensive maintenance since its original installation.
B: Maintaining artificial-turf fields involves the occasional replacement of damaged sections of turf, whereas natural-grass fields require daily watering and periodic fertilization.
C: Most injuries sustained on artificial-turf fields take longer to heal and require more expensive physical therapy than do injuries sustained on natural-grass fields.
D: Athletes who have spent most of their playing time on natural-grass fields generally prefer not to play on artificial-turf fields.
Choose A, B, C or D as your solution.
C