The following are multiple choice questions (with answers) about medical knowledge.   **Question:** Sphenoidal air sinus is supplied by which nerve:   (A) Posterior ethmoidal   (B) Posterior superior   (C) Sphenoidal   (D) Infratemporal
['(A) Posterior ethmoidal <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) Posterior ethmoidal \n (B) Posterior superior \n (C) Sphenoidal \n (D) Infratemporal <> possible answers', '  Sphenoidal air sinus is supplied by which nerve: <> context@']