Rolling of chapati and baking of chapati are the changes that
(a) can be reversed.
(b) cannot be reversed.
(c) can be reversed and cannot be reversed, respectively.
(d) cannot be reversed and can be reversed, respectively.
Rolling of chapati is a physical reversible change because there is no change in the properties of flour. Whereas Once the chapati is baked it cannot be reversed.
Hence option (C) is correct.