The following are multiple choice questions (with answers) about medical knowledge.   **Question:** Which of the following show chemical bond with enamel:   (A) Composites   (B) Direct filling resins   (C) Polycarboxylate cements   (D) BIS-GMA resins in pit and fissure sealants
['(C) Polycarboxylate cements <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) Composites \n (B) Direct filling resins \n (C) Polycarboxylate cements \n (D) BIS-GMA resins in pit and fissure sealants <> possible answers', '  Which of the following show chemical bond with enamel: <> context@']