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: Pathology
Allergic asthma and rhinitis are related to the chemokine receptor: 
Select and explain. 
A. CCR1, B. CCR2, C. CCR3, D. CCR5
C: CCR3
Answer: C: CCR3 
Explanation: CCR1 is associted with rheumatoid ahritis and multiple sclerosis. CCR2 is related to atherosclerosis, rheumatoid ahritis and multiple sclerosis, and type 2 diabetes mellitus. CCR3 is connected to allergic asthma and rhinitis. CCR5 is a HIV 1 co receptor and is connected to transplant rejection.Ref: Harrisons principles of internal medicine, 18th edition, Page: 2663.