This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: mycology, Subject name: Microbiology
[{'content': 'How many episodes of vulval candidiasis per year are needed for diagnosis of recurrent vulvovaginal candidiasis? \nSelect and explain. \nA. 1, B. 2, C. 3, D. 4', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Vulvovaginal candidiasis: *Vulvovaginal candidiasis is considered recurrent when at least four specific episodes occur in one year(or) *At least three episodes unrelated to antibiotic therapy occur within one year Ref : Ananthanarayana textbook of Microbiology 9th edition Pgno : 612', 'role': 'assistant'}]