This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Nose and paranasal sinuses, Subject name: ENT
[{'content': 'Direction of Nasolacrimal duct is: \nSelect and explain. \nA. Downward,backward and medially, B. Downward,backward and laterally, C. Downward,forward and medially, D. Downward,forward and laterally', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Nasolacrimal duct is q membranous passage which begins at the lower end of the lacrimal sac. It runs downward,backward and laterally and opens in the inferior meatus of the nose. A fold of mucous membrane called the valve of Hasner forms an imperfect value at the lower end of the duct. Ref: Dhingra 6/e,135.', 'role': 'assistant'}]