This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Special Senses: Vision and its Elements, Subject name: Physiology
[{'content': "Lens derives nutrition from - \nSelect and explain. \nA. Vitreous, B. Aqueous, C. Optic artery', D. Ophthalmic artery", 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans. is 'b' i.e.. Aqueous o Aqueous humor, a clear liquid that nourishes the cornea and lens, is produced in the ciliary body by diffusion and active transport from plasma. It flow's through the pupil and fills the anterior chamber of the eye. It is normally reabsorbed through a network of trabeculae into the canal of Schlemm.", 'role': 'assistant'}]