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
The nematode which resides in the caecum & appendix is? 
Select and explain. 
A. Ascaris lumbricoides, B. Mansonella ozzardi, C. Enterobius vermicularis, D. All of these
C: Enterobius vermicularis
Answer: C: Enterobius vermicularis 
Explanation: Enterobius vermicularis REF: Jawetz, Melnick, & Adelberg's Medical Microbiology, 24T" edition chapter 46 Table 46-4 See APPENDIX-74 for "DISEASES DUE TO HELMINTHS" Nematodes which live in Cecum-appendix: Trichuris trichura (whipworm) Enterobius vermicularis (pinworm)