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: Pediatrics
Which of the following drugs are used in a patient with tetralogy of fallot? 
Select and explain. 
A. Digoxin, furosemide, and oxygen, B. Morphine, soda-bicarb, and propranolol, C. Atenolol with DC conveer, D. Captopril with aminophylline
B: Morphine, soda-bicarb, and propranolol
Answer: B: Morphine, soda-bicarb, and propranolol 
Explanation: Medical treatment of TOF include propanolo,morphine. Ghai essential of pediatrics, eighth edition, p.no:422