Match the column I with column II
`{:("Column I","Column II"),("a. Cimatic factor","(i) humic substances"),("b. Edaphic factor","(ii) precipitation"),("c. Topographic factor","(iii) pH of soil"),("d. Organic factor","(iv) Altitude"):}`

Options

A. a) a-ii, b-iii, c-iv, d-i
B. b) a-iii, b-iv, c-i, d-iii
C. c) a-i, b-iii, c-ii, d-iv
D. d) a-iv, b-i, c-iii, d-ii

Answer

A