input: The following are multiple choice questions (with answers) about medical knowledge.   **Question:** Porosity present in a acrylic denture is usually the result of:   (A) A prolonged curing cycle   (B) Lack of sufficient pressure applied to flask   (C) Insufficient acrylic resin monomer   (D) Prolonged bench cooling after curing
output: ['(B) Lack of sufficient pressure applied to flask <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) A prolonged curing cycle  (B) Lack of sufficient pressure applied to flask  (C) Insufficient acrylic resin monomer  (D) Prolonged bench cooling after curing <> possible answers', '  Porosity present in a acrylic denture is usually the result of: <> context']