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
Which bacteria acts by inhibiting protein synthesis- 
Select and explain. 
A. Pseudomonas, B. Staphylococcus, C. Streptococcus, D. Klebsiella
A: Pseudomonas
Answer: A: Pseudomonas 
Explanation: None