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
Mac Conkey's Agar is - 
Select and explain. 
A. Enriched medium, B. Enrichment medium, C. Differential medium, D. Synthetic medium
C: Differential medium
Answer: C: Differential medium 
Explanation: Ans. is 'c' i.e., Differential medium