This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Dental
Commonest site of atopic dermatitis is 
Select and explain. 
A. Scalp, B. Trunk, C. Elbow, D. Anterior cubital fossa
D: Anterior cubital fossa
Answer: D: Anterior cubital fossa 
Explanation: Atopic dermatitis most commonly involves the cheeks in infantile stage and anti-cubital fossa in adults Decreased sudomotor function is involved in the formation of atopic eczema in the cubital fossa. . BACKGROUND: Eczema in the cubital fossa, which is susceptible to sweat, is frequently observed in atopic dermatitis (AD). However, there has been no direct evidence that sweating causes eczema in the cubital fossa. (Ref Harrison 20th edition pg 1267