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 of the following class specific antigenic determinants of an immunoglobulin is associated with ? 
Select and explain. 
A. L-chain, B. H-chain, C. J-chain, D. Variable region
B: H-chain
Answer: B: H-chain 
Explanation: None