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': "MacConkey's Agar is - \nSelect and explain. \nA. Enriched medium, B. Enrichment medium, C. Differential medium, D. Synthetic medium", 'role': 'user'}, {'content': 'Answer: C \nExplanation: DIFFERENTIAL MEDIA: a medium that has substance incorporated in it enabling it to bring out differing characteristic of bacteria and help to distinguish between them is called differential media for eg; MAcCONKEY, NAGLERS MEDIA Ref:', 'role': 'assistant'}]