The following are multiple choice questions (with answers) about medical knowledge.   **Question:** Duration of action of proparacaine:   (A) 2min   (B) 5min   (C) 10min   (D) 20min
['(D) 20min <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) 2min \n (B) 5min \n (C) 10min \n (D) 20min <> possible answers', '  Duration of action of proparacaine: <> context@']