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: Medicine
The pathogenicity of major pseudomonads is based on oppuunism. The exception is: 
Select and explain. 
A. Pneumonia, B. Otitis media, C. Melioidosis, D. Skin infection
C: Melioidosis
Answer: C: Melioidosis 
Explanation: The pseudomonads are a heterogeneous group of gram-negative bacteria. The members of this group are now assigned to three genera-Pseudomonas, Burkholderia, and Stenotrophomonas. The pathogenicity of most pseudomonads is based on oppounism; the exceptions are the organisms that cause melioidosis (B. pseudomallei) and glanders (B. mallei) Ref: Harisson, Edition - 18, Page 1151.