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
This type of skin lesions are seen in deficiency of which element? 
Select and explain. 
A. Iodine, B. Zinc, C. Copper, D. Chromium
B: Zinc
Answer: B: Zinc 
Explanation: Psoriasiform facial lesions of zinc deficiency dermatitis. Similar lesions on the feet with secondary nail dystrophy may also been seen.