A Varsity Sprinter Is Considering Taking Caffeine Pills Before His

A varsity sprinter is considering taking caffeine pills before his competition to help his performance.What information would you give him?​

A) Caffeine provides no performance benefits for any type of athletic events.
B) Caffeine will help dilate blood vessels to increase blood flow to the muscles.
C) ​He will not have to worry about adverse effects because caffeine does not have any.
D) ​He needs to be aware that sport governing bodies prohibit high doses of caffeine.
E) ​Even in low doses,caffeine causes stomach upset,nervousness,irritability,headaches,dehydration,and diarrhea.