While the ________________ and U

While the ________________ and U.S.Senate hearings about the use of performance enhancing drugs by Major League Players may have slowed their use,there exists a futuristic concern that athletes may turn to ______________ to enhance performance and avoid detection.

A) World Anti-Doping Agency Report,genetic engineering.
B) Mitchell Report,genetic engineering.
C) World Anti-Doping Agency Report,dietary food supplements.
D) Mitchell Report,dietary food supplements.