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
All are skin findings in atopic dermatitis, EXCEPT: 
Select and explain. 
A. Facial pallor, B. Pityriasis alba, C. Keratosis pilaris, D. Black dermatographism
D: Black dermatographism
Answer: D: Black dermatographism 
Explanation: First 3 options are included under the minor criteria for atopic dermatitis. In atopic dermatitis white dermatographism occures which is a white line occuring in the skin on stroking with a blunt object. Black dermaotographism is discolouration of the skin after pressure from a metallic object. Ref: Fitzpatrick's Dermatology in General Medicine, 7th edition, Page : 148