Find out the correct option from the given statements for ion exchange.
(i) Anion and cations are located on the surface of cell wall through their absorption.
(ii) The soil solutions also contains ions.
(iii) Carrier molecules are involved in ion exchange & energy is consumed from ATP.
(iv) Such ionic exchange occurs even against their concentration - gradient.
(a) iii and iv
(b) i, ii and iii
(c) i, ii and iv
(d) ii, iii and iv
