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
RBBB with left Axis eviation is characteristic of 
Select and explain. 
A. Ostium Primum ASD, B. Mitral valve prolapse, C. Patent Ductus Arteriosus, D. Ventricular Septal Defect
A: Ostium Primum ASD
Answer: A: Ostium Primum ASD 
Explanation: None