Match column I with column II

Column I	Column II
(a) Photoautotrophs	(i) Able to manufacture their organic food from inorganic raw material with the help of energy derived from exergonic chemical reactions involving oxidation of an inorganic substance
(b) Chemoautotrophs	(ii) Obtain both carbon and energy from organic compounds
(c) Photoheterotrophs	(iii) Obtain carbon from external organic source and energy from sunlight to perform photosynthesis
(d) Chemoheterotrophs	(iv) Obtain carbon from atmospheric carbon dioxide and energy from sunlight to perform photosynthesis.

• A

  (a)-(iv), (b)-(iii), (c)- (i), (d)-(ii)

• B

  (a)-(iv), (b)-(i), (c)- (iii), (d)-(ii)

• C

  (a)-(iii), (b)-(i), (c)- (iv), (d)-(ii)

• D

   (a)-(iv), (b)-(i), (c)- (ii), (d)-(iii)