Which of the following statements are incorrect ?
(i) Leucocytes disintegrate in spleen and liver
(ii) RBCs, WBCs and blood platelets are produced by bone narrow
(iii) Neutrophils bring about destruction and detoxification of toxins of proteins origin
(iv) Important function of lymphocytes is to produce antibodies.
A. (i) and (ii) only
B. (i) and (iv) only
C. (i) and (iii) only
D. (ii) and (iii) only
