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: Radiology
Cardiotoxicity caused by radiotherapy & chemotherapy is best detected by – 
Select and explain. 
A. ECHO, B. ECG, C. Radionucletide scan, D. Endomyocardial biopsy
D: Endomyocardial biopsy
Answer: D: Endomyocardial biopsy 
Explanation: Radiation / chemotherapy-induced myocardial fibrosis is best diagnosed by Endomyocardial biopsy.