This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Microbiology
Man is the only reservoir for 
Select and explain. 
A. Salmonella, B. Campylobacter jejuni, C. E. histolytica, D. Y. enterocolitica
C: E. histolytica
Answer: C: E. histolytica 
Explanation: Entamoeba histolytica is predominantly found in primates (including humans) and occasionally in dogs, cats, cattle and pigs. 
The parasite has a worldwide distribution and is prevalent in tropical and subtropical countries.
Salmonella - The most common are animal reservoirs are chickens, turkeys, pigs, and cows; dozens of other domestic and wild animals also harbor these organisms.
Campylobacter jejuni - C. jejuni is carried by most of these animal reservoirs and is the predominant species isolated from chickens and cattle.
Y. Enterocolitica - dogs, sheep, wild rodents, and environmental water may also be a reservoir of pathogenic Y. enterocolitica strains.
Ref : http://parasite.org.au/para-site/text/entamoeba-text.html#:~:text=Host%20range%3A%20Entamoeba%20histolytica%20is,in%20tropical%20and%20subtropical%20countries