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
Cardiomyopathy is caused by which monoclonal antibody? 
Select and explain. 
A. Trastuzumab, B. Infliximab, C. Eternacept, D. Adalimumab
A: Trastuzumab
Answer: A: Trastuzumab 
Explanation: Ans. is 'a' i.e., Trastuzumab o Trastuzumab, a HER2/neu receptor blocker and is used in breast carcinoma causes dilated cardiomyopathy.