This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Bacteriology, Subject name: Microbiology
The leather term is used for 
Select and explain. 
A. Anthrax, B. Proteus, C. Diphtheria, D. Neisseria
C: Diphtheria
Answer: C: Diphtheria 
Explanation: Diphtheria was first recognized as a clinical entity by Bretonneau who called it "diphtheria" (from diph-theros, meaning leather). The name is derived from the tough, leathery pseudomembrane formed in the disease. Reference: Textbook of Microbiology; Anathanarayan and panicker's; 10th edition; Page no: 239