Teacher:In this task, you are given a multiple-choice question about healthcare. Answer the question based on your information and classify your answers into '1', '2', '3', and '4'.
Teacher: Now, understand the problem? Solve this instance: Question: Which of the following drugs can alleviate the compensatory increases in heart rate and the release of renin that occur in heart failure ?:
Options: <1> Milrinona. <2> Digoxin <3> Dobutamine <4> Enalapril <5> Metoprolol
Student:
5