This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Systemic Bacteriology (Gram Positive Bacilli, Gram Negative Bacilli), Subject name: Microbiology
[{'content': 'Corynebacterium diphtheriae is arranged in- \nSelect and explain. \nA. Bamboo stick pattern, B. Cuneiform pattern, C. Fish in stream pattern, D. Rail road track pattern', 'role': 'user'}, {'content': "Answer: B \nExplanation: B. anthracis C. diphtheriae Gram positive bacilli. (Bamboo stick appearance). Albe's staining -arranged in Chinese letter or Cuneiform (V-L shaped) pattern, bacilli are green in color, along with bluish-black granules. Vibrio cholerae Hemophilus ducreyi Fish in stream pattern or mucus flakes of stool. Rail road track pattern", 'role': 'assistant'}]