Adult human RBCs are enucleate. Which of the following statements(s) is / are most appropriate explanation for
this feature ?
( a) They do not need to reproduce
(b) They are somatic cells
(c) They do not metabolize
(d) All their internal space is available for oxygen transport Options :
(1) (b) and (c)
(2) Only (d)
(3) Only (a)
(4) (a), (c) and (d)