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
A child has multiple itchy papular lesions on the genitalia and fingers. Similar lesions are also seen in the younger brother. Which of the following is most possible diagnosis ? 
Select and explain. 
A. Papular urticaria, B. Scabies, C. Atopic dermatitis, D. Allergic contact dermatitis
B: Scabies
Answer: B: Scabies 
Explanation: None