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: Anatomy
Middle piece of sperm contains ? 
Select and explain. 
A. Golgi apparatus, B. Mitochondria, C. Lysosome, D. Ribosome
B: Mitochondria
Answer: B: Mitochondria 
Explanation: Ans. is 'b' i.e., Mitochondria