The following are multiple choice questions (with answers) about medical knowledge.   **Question:** For a bonding agent to be effective wetting angle should be   (A) Minimum with dental hard tissue   (B) Minimum with dentin and Maximum with enamel   (C) Maximum with dentin and Minimum with enamel   (D) Maximum with dental hard tissue
['(A) Minimum with dental hard tissue <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) Minimum with dental hard tissue \n (B) Minimum with dentin and Maximum with enamel \n (C) Maximum with dentin and Minimum with enamel \n (D) Maximum with dental hard tissue <> possible answers', '  For a bonding agent to be effective wetting angle should be <> context@']