That is incorrect. A (heat stroke) is the correct answer.
Warning signs of heat stroke vary but may include
An extremely high body temperature (104°F or above, rectally*)
Red, hot, and dry or moist skin
Rapid, strong pulse
Throbbing headache
Dizziness
Nausea
Confusion
Unconsciousness
Note: Confusion on the field may include missed assignments or not understanding the play. The athlete may not realize that he or she is confused—this symptom is usually observed by others.