This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General pathology, Subject name: Pathology
Which of the following cytoplasmic structures contains fragmented mitochondria? 
Select and explain. 
A. Pinocytotic vacuoles, B. Primary lysosomes, C. Heterophagosomes, D. Autophagosomes
D: Autophagosomes
Answer: D: Autophagosomes 
Explanation: Auto phagosomes are lysosome derived phagocytic vacuoles filled with fragments of old or damaged organelles.