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
[{'content': 'A 30 year old male presents with a creamy white patch on the tongue. The most probable diagnosis is: \nSelect and explain. \nA. Candidiasis, B. Histoplasmosis, C. Lichen Planus, D. Aspergillosis', 'role': 'user'}, {'content': "Answer: A \nExplanation: Candidal stomatitis or oral thrush is the presence of a curdy white pseudomembrane on the buccal, labial, tongue, gingival or palatal mucosa in otherwise healthy individuals. Ref: Skin Diseases and Sexually Transmitted Infection, Uday Khopkar, 6th Eidition, Page 61; Harrison's Principles of Internal Medicine, 16th Edition, Page 183, 188.", 'role': 'assistant'}]