input: The following are multiple choice questions (with answers) about medical knowledge.   **Question:** During which stage of tooth formation the size of the tooth is determined?   (A) Apposition   (B) Histodifferentiation   (C) Morpho differentiation   (D) Calcification
output: ['(C) Morpho differentiation <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) Apposition  (B) Histodifferentiation  (C) Morpho differentiation  (D) Calcification <> possible answers', '  During which stage of tooth formation the size of the tooth is determined? <> context']