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
[{'content': 'Pikes medium is used for transpo of specimens which is affected by the following organism: \nSelect and explain. \nA. Staphylococci, B. Streptococci, C. Shigella, D. Vibrio', 'role': 'user'}, {'content': "Answer: B \nExplanation: For cultures of suspected Streptococcal infections, swabs should be collected under vision from the affected site and either plated immediately or sent to the laboratory in Pike's medium (blood agar containing 1 in 1,000,000 crystal violet and 1 in 16,000 sodium azide). Ref: Textbook of Microbiology By Ananthanarayan And Paniker, 7th edition, Page 210.", 'role': 'assistant'}]