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: Unknown
A most characteristic feature of atopic dermatitis is - 
Select and explain. 
A. Extreme pruritus, B. Denny Morgan folds, C. Lichenification, D. Rash
A: Extreme pruritus
Answer: A: Extreme pruritus 
Explanation: Ans. is 'a' i.e., Extreme pruritus "Itching is severe and primary in atopic eczema, provoking a severe urge to scratch; atopic eczema is one of the most itchy disorders. It is an itch that rashes not just a rash that itches". -Venkatram