input: The following are multiple choice questions (with answers) about medical knowledge.   **Question:** The vascular supply of the periodontal ligament is:   (A) Greatest in the middle-third of a single rooted tooth   (B) Greatest in the middle-third of a multirooted tooth   (C) A net-like plexus that runs closer to the cementum than to the bone   (D) A net-like plexus that runs closer to the bone than to the cementum
output: ['(D) A net-like plexus that runs closer to the bone than to the cementum <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) Greatest in the middle-third of a single rooted tooth  (B) Greatest in the middle-third of a multirooted tooth  (C) A net-like plexus that runs closer to the cementum than to the bone  (D) A net-like plexus that runs closer to the bone than to the cementum <> possible answers', '  The vascular supply of the periodontal ligament is: <> context']