This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Medicine
Which of the following is the best inotrope agent for use in Right Hea Failure secondary to pulmonary hypeension? 
Select and explain. 
A. Dobutamine, B. Digoxin, C. Milrinone, D. Halothane
C: Milrinone
Answer: C: Milrinone 
Explanation: Phosphodiesterase III inhibitors (Milrinone) acts a non-beta receptor pathway to effect a decrease in pulmonary vascular resistance while improving left and right contractility. Such interventions are the treatment of choice in conditions of Right Hea Failure secondary to high pulmonary vascular resistance (pulmonary hypeension). Ref: Review of Clinical Anesthesia By Neil Roy Connelly, Page 218.