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
Parasites penetrating through skin for entry into the body are -a) Ancylostoma duodenaleb) Strongyloidesc) Round wormd) Trichuris trichura 
Select and explain. 
A. ac, B. a, C. ab, D. bc
C: ab
Answer: C: ab 
Explanation: Parasites enter through penetration of skin:

From Soil-Hookworm, Strongyloides
From Water-Acanthamoeba, Schistosoma spp.