The following are multiple choice questions (with answers) about medical knowledge.   **Question:** At what age root resorption start   (A) 5 years   (B) 3 years   (C) 6.5 years   (D) 7 years
['(A) 5 years <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) 5 years \n (B) 3 years \n (C) 6.5 years \n (D) 7 years <> possible answers', '  At what age root resorption start <> context@']