The following are multiple choice questions (with answers) about medical knowledge.   **Question:** Functions of apoproteins are/is   (A) Structural component of lipoprotein   (B) Enzyme cofactors   (C) Enzyme inhibitors   (D) All of the above
['(D) All of the above <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) Structural component of lipoprotein \n (B) Enzyme cofactors \n (C) Enzyme inhibitors \n (D) All of the above <> possible answers', '  Functions of apoproteins are/is <> context@']