The following are multiple choice questions (with answers) about medical knowledge.   **Question:** Which hormone, together with the catecholamines, enhances the tone of vascular smooth muscle and assists in elevating blood pressure?   (A) Parathyroid hormone   (B) Glucagon   (C) Thyroxine   (D) Cortisol
['(D) Cortisol <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) Parathyroid hormone \n (B) Glucagon \n (C) Thyroxine \n (D) Cortisol <> possible answers', '  Which hormone, together with the catecholamines, enhances the tone of vascular smooth muscle and assists in elevating blood pressure? <> context@']