The following are multiple choice questions (with answers) about medical knowledge.   **Question:** Which of the following is the only complete cailage ring in the respiratory tree?   (A) Cricoid cailage   (B) Thyroid cailage   (C) Cunieform cailage   (D) Epiglottis
['(A) Cricoid cailage <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) Cricoid cailage \n (B) Thyroid cailage \n (C) Cunieform cailage \n (D) Epiglottis <> possible answers', '  Which of the following is the only complete cailage ring in the respiratory tree? <> context@']