The cells shown in the figure can be found in the blood.
Which of the following statements is/are correct regarding these cells?
(i) They do not have nucleus.
(ii) They help the body to fight against infections.
(iii) They help the blood to clot.
(iv) They help to transport oxygen.
A (ii) only
B (i) and (ii) only
C (i), (ii) and (iii) only
D (i), (iii) and (iv) only