I believe crunches are the best for building physical strength, although the rest also do help.
Answer:
E. Coli (Option A)
Explanation:
It's not B. Salmonella is contracted from reptiles, poop, etc. and is unlikely to be found in a regulated restaurant setting.
It's not C. Gastroenteritis isn't really a foodborne illness and has specific, easily identifiable symtoms anyways.
It's not D. Ryan would be dead if he contracted Botulism.
The answer would be "B. cocaine". Cocaine is an illegal stimulant unlike the other options listed above.
Walking, running, any exercise that increases heart rate
Pros: teamwork, doing something you enjoy, spending time with friends cons: staring at a screen, bad posture, might be on it for to long