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: Microbiology
Characteristic infection of nocardia asteroides is? 
Select and explain. 
A. Colonic diverticula, B. Brain abscess, C. Secondary dissemination to liver, D. Diarrhoea
B: Brain abscess
Answer: B: Brain abscess 
Explanation: None