The following are multiple choice questions (with answers) about medical knowledge.   **Question:** Ceramide is:   (A) Simple lipid   (B) Compound lipid   (C) Precursor lipid   (D) Derived lipid
['(A) Simple lipid <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) Simple lipid \n (B) Compound lipid \n (C) Precursor lipid \n (D) Derived lipid <> possible answers', '  Ceramide is: <> context@']