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: Microbiology
Most common cause of community acquired pneumonia - 
Select and explain. 
A. Strep pneumoniae, B. Kleb pneumoniae, C. Vibrio cholera, D. H. influenzae
A: Strep pneumoniae
Answer: A: Strep pneumoniae 
Explanation: Ans. is 'a' i.e., Strep. pneumoniae