This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Pneumonia, Subject name: Medicine
Which organism is most likely to be associated with VAP? 
Select and explain. 
A. Acinetobacter, B. Klebsiella, C. Clostridium, D. MTB
A: Acinetobacter
Answer: A: Acinetobacter 
Explanation: The leading cause of Ventilator associated pneumonia(VAP) - MDR pathogens is :- Pseudomonas aeruginosa > MRSA> Acinetobacter. NON -MDR pathogen is :- Streptococcus Pneumoniae> Hemophilus influenzae.