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: Pathology
All are the causes of myocarditis except ? 
Select and explain. 
A. Trichinosis, B. Mycobacterium tuberculosis, C. Corenybacterium diphtheria, D. Systemic lupus erythromatosis
B: Mycobacterium tuberculosis
Answer: B: Mycobacterium tuberculosis 
Explanation: Ans. is 'b' i.e., Mycobacterium tuberculosis