input: The following are multiple choice questions (with answers) about medical knowledge.   **Question:** Highest level of evidence is seen in:   (A) Case control studies   (B) Meta-analysis   (C) Cohort studies   (D) Systematic review
output: ['(B) Meta-analysis <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) Case control studies  (B) Meta-analysis  (C) Cohort studies  (D) Systematic review <> possible answers', '  Highest level of evidence is seen in: <> context']