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
Neuropathogenic amoeba are -a) Acanthamoebab) Ent. colic) Naegleriad) Ent. Histolytica 
Select and explain. 
A. a, B. ac, C. ad, D. b
B: ac
Answer: B: ac 
Explanation: Neuropathogenic amoebae are  -

Naegleria fowleri causes primary amebic meningoencephalitis.
Acanthamaeba causes granulomatous amebic encephalitis
Balamuthia mandrillaris causes amebic meningoencephalitis.