The following are multiple choice questions (with answers) about medical knowledge.   **Question:** For periodontal patients, the most frequently recommended tooth brushing technique is:   (A) Scrub technique   (B) Roll technique   (C) Sulcular technique   (D) Fones technique
['(C) Sulcular technique <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) Scrub technique \n (B) Roll technique \n (C) Sulcular technique \n (D) Fones technique <> possible answers', '  For periodontal patients, the most frequently recommended tooth brushing technique is: <> context@']