This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Cardiovascular system, Subject name: Pharmacology
All of the following drugs are used for the treatment of congestive hea failure except 
Select and explain. 
A. Nitroglycerin, B. Spironolactone, C. Nesiritide, D. Trimetazidine
D: Trimetazidine
Answer: D: Trimetazidine 
Explanation: Ref-CMDT-2010/362-364 Trimetazidine Is a paially fatty acid oxidation inhibitor used for angina pectoris