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: Skin
Exclamation mark alopecia is a feature of: 
Select and explain. 
A. Telogen effluvium, B. Androgenic alopecia, C. Alopecia aerata, D. Alopecia mucinosa
C: Alopecia aerata
Answer: C: Alopecia aerata 
Explanation: C i.e. Alopecia aerate