You might have observed the preparation of ghee from butter and cream at home. Which method(s) can be used to separate ghee from the residue? (i) Evaporation (ii) Decantation (iii) Filtration (iv) Churning Which of the following combination is the correct answer? (a) (i) and (ii) (b) (ii) and (iii) (c) (ii) and (iv) (iv) only