In this task, you are given a question and answer options for that question. Using this information, you have to classify each text into different topics: medicine, nursery, psychology, chemistry, pharmacology, biology.
Q: Question: In the treatment of heart failure:
Options: <0> Angiotensin receptor blockers (ARA II) have shown superiority over angiotensin-converting enzyme (ACE) inhibitors and should be the first therapeutic option. <1> Aldosterone antagonists have not shown prognostic improvement, being contraindicated in patients with advanced systolic dysfunction and functional grade IV. <2> Beta-blockers have been shown to decrease mortality in patients with decreased ejection fraction. <3> Cardiac resynchronization pacemaker therapy is indicated in patients with systolic dysfunction whenever the QRS is narrow (less than 120 msg). <4> The implantation of automatic defibrillators is contraindicated in patients with ventricular dysfunction, especially if it is caused by ischemia.
A:
medicine