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: Forensic Medicine
True about mummification is - 
Select and explain. 
A. External features are preserved, B. High atmospheric temperature is needed, C. Occurs in dry air, D. All of the above
D: All of the above
Answer: D: All of the above 
Explanation: Facial features and injuries are preserved in mummification.
It occurs in hot, dry and windy climate.