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
Which egg does not float in a saturated solution of saline ? 
Select and explain. 
A. Ankylostoma eggs, B. Trichuris eggs, C. Unfeilized egg of Ascaris, D. Feilized egg of Ascaris
C: Unfeilized egg of Ascaris
Answer: C: Unfeilized egg of Ascaris 
Explanation: Helminth eggs floating in saturated salt solution: Hell FATE Hell-Helminth,H.nana F-Feilised eggs of Ascaris A-Ancylostoma duodenale T-Trichuris trichiura E-Enterobius vermicularis