Match column (I) with column (II) and select the correct answer using codes given bleow in the lists.
`{:("Column I","Column II"),("(i) Cyanide process","(a) Extraction of Al"),("(ii) Self reduction","(b) Extraction of Ag"),("(iii) Electrolytic reduction","(c) Extyraction of Cu"),("(iv) Carbon reduction","(d) Extraction of Sn"):}`

Options

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

Answer

A