This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: general microbiology, Subject name: Microbiology
[{'content': 'All are capsulated bacteria except - \nSelect and explain. \nA. Neisseria, B. Corynebacterium diphtheriae, C. Haemophillus, D. Streptococcus saliverius', 'role': 'user'}, {'content': "Answer: B \nExplanation: The diphtheria bacillus are pleomorphic, nonsporing noncapsulated and nonmotile they are gram-positive .pleomorphic, nonspoing, encapsulated, nonmotile gram-positive bacteria REF:Ananthanarayan and Panikkar's textbook of microbiology 9th edition pg no 236", 'role': 'assistant'}]