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
Larvae which infects humans by penetration through skin: 
Select and explain. 
A. Ancylostoma duodenale, B. Ascaris, C. Trichinella, D. Enterobius
A: Ancylostoma duodenale
Answer: A: Ancylostoma duodenale 
Explanation: Ans: a (Ancylostoma duodenale) Ref: Paniker parasitology, 5th ed, p. 164Classification of nematodes on the basis of mode of infection1) By ingestionEggs-trichuris, enterobius, ascarisLarvae-dracunculiasis, trichinella2) Penetration of skinAncylostoma, necator, strongyloides3) By mosquitoFUaria4) By inhalation of eggsAscaris, enterobius5) AutoinfectionHymenolepsis nana, enterobius vermicularis, taenia solium, strongyloides