Task: Text Categorization
Input (English): Question: In acute coronary syndrome with ST-segment elevation, heparin is used because: 
 Options:  <0> It is fibrinolytic, since it destroys the thrombus. <1> It inhibits the formation of more thrombi and prevents their recurrence. <2> It inhibits platelet aggregation. <3> Restores the patency of the coronary artery immediately. <4> All the previous answers are correct.
Output (English): nursery