Why Was Max Gilpin's Coach, Stinson, Charged with Reckless Homicide

Why was Max Gilpin's coach, Stinson, charged with reckless homicide?

A) He held football practice during an excessively hot and humid day, which may have caused Max Gilpin's death.
B) By requiring excessive exertion for a large person on a hot humid day, he may have caused Max Gilpin to dehydrate, overheat, and die.
C) He held a particularly strenuous football practice which may have caused Max Gilpin's death.
D) Because he did not know Max Gilpin was taking Adderall, he caused his death by allowing him to play football.