input: The following are multiple choice questions (with answers) about medical knowledge.   **Question:** To prevent sensitivity caused by acid etching and to protect pulp in deep cavities which of the following should be used.   (A) Ca(OH)2 liner   (B) ZOE   (C) Light cured GIC liner   (D) Varnish
output: ['(A) Ca(OH)2 liner <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) Ca(OH)2 liner  (B) ZOE  (C) Light cured GIC liner  (D) Varnish <> possible answers', '  To prevent sensitivity caused by acid etching and to protect pulp in deep cavities which of the following should be used. <> context']