Match List-I (Horizons of soil profile) with List-II (Contents) and select the correct answer:

List-I	List-II
a. O-horizon	1. Composed of fresh or partially decomposed organic material
b. A-horizon	2. Composed of weathered parent material
c. B-horizon	3. Composed of major organic matter, accumulated by the loss of clay, iron and aluminium
d. C-horizon	4. Composed of consolidated rock
e. R-horizon	5. Composed of alluvial concentration of all or any of the silicates, clay, iron, aluminium and humus, alone or in combination

A. a-1, b-2, c-3, d-4, e-5

B. a-5, b-2, c-4, d-3, e-1

C. a-1, b-3, c-5, d-2, e-4

D. a-2, b-4, c-1, d-3, e-5

Answer: Option C