This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Diseases of orbit, Lids and lacrimal apparatus, Subject name: Ophthalmology
[{'content': 'Distichiasis is- \nSelect and explain. \nA. Abnormal inversion of eyelashes, B. Abnormal extra row of cilia, C. Abnormal eversion of eyelashes, D. Misdirected cilia', 'role': 'user'}, {'content': 'Answer: B \nExplanation: *Distichiasis i.e. an abnormal extra row of cilia taking place of meibomian glands. Ref: Khurana ophthalmology 7th/e p.386', 'role': 'assistant'}]