Which of the following statements are wrong?

(i) Leucocytes disintegrate in the spleen and liver.

(ii) RBC, WBC and blood platelets are produced by bone marrow.

(iii) Neutrophils bring about destruction and detoxification of toxins of protein origin.

(iv) The 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