The following are multiple choice questions (with answers) about medical knowledge.   **Question:** Prostaglandins are synthesized from:   (A) RNA template   (B) Rough endoplasmic reticulum   (C) Polyunsaturated fatty acids   (D) None of the above
['(C) Polyunsaturated fatty acids <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) RNA template \n (B) Rough endoplasmic reticulum \n (C) Polyunsaturated fatty acids \n (D) None of the above <> possible answers', '  Prostaglandins are synthesized from: <> context@']