This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Male Sex Glands, Subject name: Anatomy
Middle piece of sperm tail made up of? 
Select and explain. 
A. Golgibody, B. Centriole, C. Mitochondria, D. Lysosome
C: Mitochondria
Answer: C: Mitochondria 
Explanation: Ans. (c) MitochondriaRef: IB singh 5/e, p 22, Gray's anatomy 39th ed. / 1308, Guyton 12th ed./975