Give the name P, Q, R from given figure
(a) P - antigen binding site
Q - Light constant region
R - Non-variable rigon of Heavy Chain
(b) P - antigen binding site
Q - Light constant region
R - Variable region of Heavy Chain
(c) P - disulphide bond
Q - antigen binding site
R - variable region of heavy chain
(d) P - antigen binding site
Q - antibody binding site
R - sulphide bond .