Recognise the figure and find out the correct mathching
A. b-light chain c-heay chain ,d-N terminal e-C terminal , a-antigen binding site
B. b-light chain c-heavy chain e-N terminal d-C terminal , a-antigen binding site
C. c-liht chain b-heavy chain d-N terminal e-C terminal ,a-antigen binding site
D. c- light chain ,b- heavy chain ,a-N temimal d-C terminal ,e-antigen binding site