input: The following are multiple choice questions (with answers) about medical knowledge.   **Question:** Occurrence of malocclusion in given population is best described as:   (A) Prevalence rate   (B) Incidence rate   (C) Morbidity   (D) Probability
output: ['(A) Prevalence rate <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) Prevalence rate  (B) Incidence rate  (C) Morbidity  (D) Probability <> possible answers', '  Occurrence of malocclusion in given population is best described as: <> context']