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': 'Pitryiasis versicolor is caused by: \nSelect and explain. \nA. Candida, B. Rhinosdporodium, C. Malsezzia, D. Tinea', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Malsezzia', 'role': 'assistant'}]