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
Loffler's medium is - 
Select and explain. 
A. Indicator medium, B. Selective medium, C. Enrichment medium, D. Enriched medium
D: Enriched medium
Answer: D: Enriched medium 
Explanation: When a basal medium is added with some nutrients such as blood, serum, egg, it is called enriched medium Loeffler serum slope - serum is added for enriching the medium is used for grouping Corynebacterium diphtheriae REF:a textbook of Microbiology Dr.C.P.Baveja 4th Edition pg no: 43