Final answer:
Thinning of the blood is not a common side effect of performance-enhancing drugs.
Step-by-step explanation:
The correct option among the given choices is OC. Thinning of the blood.
Irregular heartbeat, muscle soreness, and anger, paranoia, and aggression are common side effects associated with certain performance-enhancing drugs. However, thinning of the blood is not a commonly reported side effect.
Learn more about common side effects of performance-enhancing drugs