I guess its medical, if not, philosophical
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.
If there is an option for Vitamin B12 then that will be your answer.
Answer:
Sorry I don't understand the question nicely.
Opportunistic infections (OIs) are infections that occur more frequently and are more severe in individuals with weakened immune systems, including people with HIV. People are at greatest risk for OIs when their CD4 count falls below 200, but you can get some OIs when your CD4 count is below 500.