The following are multiple choice questions (with answers) about medical knowledge.   **Question:** Nucleus in brain common to IX, X and XI cranial nerves:   (A) Nucleus solitarius   (B) Nucleus ambiguus   (C) Dentate nucleus   (D) Red nucleus
['(B) Nucleus ambiguus <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) Nucleus solitarius \n (B) Nucleus ambiguus \n (C) Dentate nucleus \n (D) Red nucleus <> possible answers', '  Nucleus in brain common to IX, X and XI cranial nerves: <> context@']