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
Non-motile among the Burkholderia is 
Select and explain. 
A. B. mallei, B. B. pseudomallei, C. B. cepaciae, D. B. bovis
A: B. mallei
Answer: A: B. mallei 
Explanation: Burkholderia mallei is a causative agent of glanders, a disease primarily of equine animals _ horses,mules and asses and capable of being transmitted to other animals like human beings, is a slender,nonmotile, gram negative bacillus,2.5x0.5 microns in size staining irregularly and often has beaded appearance.it is an aerobe and a facultative anaerobe growing on ordinary medium. Ref:anantnarayan and paniker's microbiology 10th edition