This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Systemic Bacteriology (Gram Positive Bacilli, Gram Negative Bacilli), Subject name: Microbiology
Which of the following propey(ies) is/are seen in the members of family Enterobacteriaceae? 
Select and explain. 
A. They are catalase-positive, B. They are oxidase-negative, C. They ferment glucose, D. All are true
D: All are true
Answer: D: All are true 
Explanation: All the above options are true for the members of family Enterobacteriaceae. Enterobacteriaceae propeies: Gram-negative, aerobes and facultative anaerobic bacilli. Nonfastidious. Ferment glucose. Reduce nitrate to nitrite. Oxidase test negative. Catalase positive (except Shigella dysenteriae type-1). Motile, except Shigella and Klebsiella. Natural habitat: Human intestine, called coliform bacilli.