This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: parasitology, Subject name: Microbiology
Second intermediate host of Diphyllobothrium latum is - 
Select and explain. 
A. Cylops, B. Man, C. Snail, D. Fresh water fish
D: Fresh water fish
Answer: D: Fresh water fish 
Explanation: Definitive host : Man (optimal) First intermediate host:Freshwater copepod, mainly of genera cyclops or Diaptomus second intermediate host: freshwater fish Ref; panikers textbook of Medical parasitology 8th edition page 118