The following are multiple choice questions (with answers) about medical knowledge.   **Question:** Which of the following is not responsible for endogenous staining of teeth during development?   (A) Tetracycline   (B) Rh incompatibility   (C) Neonatal liver disease   (D) Vitamin-C deficiency
['(D) Vitamin-C deficiency <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) Tetracycline \n (B) Rh incompatibility \n (C) Neonatal liver disease \n (D) Vitamin-C deficiency <> possible answers', '  Which of the following is not responsible for endogenous staining of teeth during development? <> context@']