This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: C.V.S., Subject name: Medicine
Which of the following drug is a Potassium channel activator? 
Select and explain. 
A. Trimetazidine, B. Ivabradine, C. Nicorandil, D. Detanonoate
C: Nicorandil
Answer: C: Nicorandil 
Explanation: Ans. C. Nicorandil1. It has vasodilating properties in normal coronary arteries.2. It reduces both preload and afterload.3. It also provides some myocardial protection via preconditioning by activation of cardiac KATP channels.4. Its significant reduction in relative risk of fatal and nonfatal coronary events in patients receiving the drug.