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: Biochemistry
True about mitochondria' DNA: 
Select and explain. 
A. Maternal inheritance, B. Mitochondrial disease is associated mostly with Mutation & some have deletion, C. Not highly conserved & has high mutation rate, D. All
D: All
Answer: D: All 
Explanation: A i.e. Maternal inheritance; B i.e. Mitochondrial disease is associated mostly with Mutation & some have deletion; C i.e. Not highly conserved & has high mutation rate;