Match items of Column-I with the items of Column II and assign the correct code :
`{:(" Column-I "," Column-II "),("a) Cyanide process ","i) Ultrapure Ge "),("b) Froth floatation process ","ii) Dressing of ZnS "),("c) Electrolytic reduction ","iii) Extraction of Al "),("d) Zone refining ","iv) Extraction of Au "),(,"v) Purification of Ni "):}`

Options

A. `{:(1,2,3,4),(i,ii,iii,iv):}`
B. `{:(1,2,3,4),(iii, iv, v, i ):}`
C. `{:(1,2,3,4),(iv, ii, iii, i ):}`
D. `{:(1,2,3,4),(ii, iii, i, v ):}`

Answer

C