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
Dwarf tapeworm refers to: 
Select and explain. 
A. Echinococcus, B. Loa Loa, C. Hymenolepsis nana, D. Schistosoma mansoni
C: Hymenolepsis nana
Answer: C: Hymenolepsis nana 
Explanation: Ans. is 'c' i.e., Hymenolepsis nana(Ref: Chatterjee, 12th/e, p. 128)* H. Nana is the smallest intestinal cestode infecting man.* It is also known as dwarf tapeworm.* Egg is peculiar have onchosphere with six hooklets polar filaments.* Shows autoinfection.* DOC - Praziquantel.