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
ASA -3 is 
Select and explain. 
A. Comorbidities with minimal limitation, B. Comorbidities with moderate limitation, C. Comorbidities which are constant threat to life, D. No comorbidities
B: Comorbidities with moderate limitation
Answer: B: Comorbidities with moderate limitation 
Explanation: ASA grade 3 is when comorbidities are present and make patient symptomatic often.