Match items of Column I with the items of Column II and assign the correct code:
`{:(ColumnI,ColumnII),((A)"Cyanide process",(1)"Ultrapure Ge"),((B)"Froth Floatation Process",(2)"Dressing of"ZnS),((C)"Electrolytic reduction",(3)"Extraction of Al"),((D)"Zone refining",(4)"Extraction of Au"),(,(5)"Purification of Ni"):}`
A. `{:(,(A),(B),(C),(D)),(,(iv),(ii),(iii),(i)):}`
B. `{:(,(A),(B),(C),(D)),(,(iv),(ii),(iii),(i)):}`
C. `{:(,(A),(B),(C),(D)),(,(i),(ii),(iii),(iv)):}`
D. `{:(,(A),(B),(C),(D)),(,(iii),(iv),(v),(i)):}`
