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: Anaesthesia
Most common injection site infection in spinal anaesthesia 
Select and explain. 
A. Staphylococcus, B. Streptococcus, C. Pseudomonas, D. Bacteroides
B: Streptococcus
Answer: B: Streptococcus 
Explanation: Streptococcal infection is most common in spinal anaesthesia.