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: Pharmacology
Which of the following traditional medicines is effective in the treatment of hea failure 
Select and explain. 
A. Terminalia Arjuna, B. Neem bark extract, C. St. John's wo, D. Gingkoba biloba
A: Terminalia Arjuna
Answer: A: Terminalia Arjuna 
Explanation: Ans. a. Terminalia Arjuna Terminalia Arjuna (An ayurvedic cardioprotective botanical) Although many Ayurvedic plants have shown to help coronary aery disease, Arjuna (Terminalia Arjuna) by far seems to be the best plant for hea health. Terminalia arjuna is a traditional ayurvedic plant containing tannins, triterpenoid saponins (arjungenin, arjunglucosides), flavonoids (arjunon, arjonolone), phytosterols, oligomeric proanthocyanidins (OPC's), calcium, magnesium, zinc, and copper.