input: The following are multiple choice questions (with answers) about medical knowledge.   **Question:** Most common route for metastasis of oral cancer is by:   (A) Direct extension   (B) Lymphatics   (C) Blood vessels   (D) Aspiration of tumor cells
output: ['(B) Lymphatics <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) Direct extension  (B) Lymphatics  (C) Blood vessels  (D) Aspiration of tumor cells <> possible answers', '  Most common route for metastasis of oral cancer is by: <> context']