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
[{'content': 'Which of the following statements is true regarding kappa, lambda and heavy chain immunogloblins -a) Coded in the same site of a chromosome b) Coded in different sites of same chromosomec) The chains are formed by genetic rearrangement after maturationd) Different chains of same immunoglobulins are coded by different chromosomese) Different chains of same immunoglobulins are coded by same chromosomes \nSelect and explain. \nA. ab, B. cd, C. bd, D. ac', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]