Some metals are extracted form their ores after some preliminary treatments by electrolysis (L), some by thermal reaction (T) and some by a combination of both processes (TL). Which set-up in the following for the extraction of iron, copper and aluminium is correct?

• A.Iron (L), copper (L), aluminium (T)
• B.Iron (L), copper (L), aluminium (TL)
• C.Iron (L), copper (TL), aluminium (T)
• D.Iron (L), copper (T), aluminium (T)