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
Which one of the following statement about culture is TRUE? 
Select and explain. 
A. Agar has nutrient propeies, B. Chocolate medium is selective medium, C. Addition of selective substances in a solid medium is called enrichment media, D. Nutrient broth is a basal medium
D: Nutrient broth is a basal medium
Answer: D: Nutrient broth is a basal medium 
Explanation: Nutrient broth is a type of simple (basal) medium. It consists of peptone, meat extract, sodium chloride and water. Chocolate medium is a type of enriched medium. Addition of selective substance to a liquid medium is called enrichment medium. Ref: Greenwood 14 th Edition, Page 39; Textbook of Microbiology, Ananthanarayan and Paniker, 7th Edition, Chapter 4, Page 37.