This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Gram-Positive Infections - Corynebacterial Infections, Subject name: Skin
[{'content': 'Pitted keratolysis affects - \nSelect and explain. \nA. Palm and soles, B. Face, C. Nails, D. All of the above', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e., Palm & soles Pitted keratolysiso Caused by opportunistic bacteria Corynebacterium dermatophilus congolensis. Overgrowth of this bacteria occurs in people involved in wet work eg:-dishwahsers. Lesions looks like pits or crators due to sharply circumscribed round areas of keratolysis (loss of keratin). Affects palm and soles.", 'role': 'assistant'}]