Final answer:
The HeartMate II is the correct answer as an acceptable form of destination therapy for patients not eligible for heart transplantation. It is a long-term support LVAD that provides symptomatic relief and improved survival.
Step-by-step explanation:
The subject of this question falls under the field of medicine, specifically regarding treatment options for patients with heart failure who are not suitable candidates for heart transplantation. Destination therapy is a permanent form of treatment intended to improve the quality of life and survival for those who have end-stage heart failure. Among the options provided, the HeartMate II (C) has been demonstrated and approved as an acceptable form of destination therapy. It is a type of left ventricular assist device (LVAD) that can be implanted to help the failing heart pump blood more effectively.
Options A, IABP (Intra-Aortic Balloon Pump), and B, Thoratec VAD (Ventricular Assist Device), are also used in the management of heart failure but have different indications than HeartMate II. However, the HeartMate II is specifically recognized for long-term treatment in patients not eligible for transplant.
The acceptable treatment for destination therapy in patients who are not suitable for heart transplantation is (C) HeartMate II. It is a left ventricular assist device used for long-term support.