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: Dental
Coin shaped eczema is – 
Select and explain. 
A. Nummular eczema, B. Atopic acema, C. Infantile eczema, D. Endogenous eczema
A: Nummular eczema
Answer: A: Nummular eczema 
Explanation: Nummular eczema (discoid eczema) is characterized by multiple, itchy, scaly, coin shaped exudative plaques on extremities in middle-aged men.