The following are multiple choice questions (with answers) about medical knowledge.   **Question:** First local anaesthesia to be used clinically was   (A) Cocaine   (B) Bupivacaine   (C) Procane   (D) Lignocaine
['(A) Cocaine <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) Cocaine \n (B) Bupivacaine \n (C) Procane \n (D) Lignocaine <> possible answers', '  First local anaesthesia to be used clinically was <> context@']