The following are multiple choice questions (with answers) about medical knowledge.   **Question:** The main vessel involved in bleeding from Juvenile nasopharyngeal angiofibroma:   (A) Facial aery   (B) Ascending pharyngeal aery   (C) Internal maxillary aery   (D) Anterior ethmoidal aery
['(C) Internal maxillary aery <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) Facial aery \n (B) Ascending pharyngeal aery \n (C) Internal maxillary aery \n (D) Anterior ethmoidal aery <> possible answers', '  The main vessel involved in bleeding from Juvenile nasopharyngeal angiofibroma: <> context@']