input: The following are multiple choice questions (with answers) about medical knowledge.   **Question:** The direct bonded orthodontic stainless steel brackets derive retention with composite because of:   (A) The mechanical interlock with mesh at the bracket base   (B) The chemical interlock of composite with bracket base   (C) Both mechanical and chemical interlock of composite with the bracket base   (D) Biological interlock between the tooth surface and bracket
output: ['(A) The mechanical interlock with mesh at the bracket base <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) The mechanical interlock with mesh at the bracket base  (B) The chemical interlock of composite with bracket base  (C) Both mechanical and chemical interlock of composite with the bracket base  (D) Biological interlock between the tooth surface and bracket <> possible answers', '  The direct bonded orthodontic stainless steel brackets derive retention with composite because of: <> context']