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
Friedlander Pneumonia refers to Pneumonia caused by 
Select and explain. 
A. Klebsiella, B. Pneumococcus, C. H. Influenzae, D. Staphylococcus
A: Klebsiella
Answer: A: Klebsiella 
Explanation: Ans. is 'a' i.e., Klebsiella Klebsiella Pneumonia is also known as "Friedlander Pneumonia". Klebsiella initially described in 1882 by Friedlander was also known as Friendlander's bacillus. Community acquired Pneumonia caused by Friendlander's bacillus (Klebsiella) was termed as Friedlander Pneumonia