Question

What happens when light falls on a photoreceptor cell?
(i) Retinol dissociates from opsin.
(ii) The structure of opsin changes.
(iii) The membrane permeability changes.

a) (i) and (ii)
b) (i) and (iii)
c) (ii) and (iii)
d) (i), (ii), and (iii)