This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Ocular Embryology& Anatomy, Subject name: Ophthalmology
[{'content': 'Posterior chamber contains: \nSelect and explain. \nA. Retinal vessels, B. Aqueous humour, C. Vitreous humour, D. All', 'role': 'user'}, {'content': 'Answer: B \nExplanation: BOTH AC AND PC CONTAINS AQUEOUS HUMOR Posterior chamber(PC) - space between posterior surface of iris & anterior surface of lens. Posterior chamber contain aqueous humor Posterior segment contain vitreous humor', 'role': 'assistant'}]