Out line the principle of the method used for refining of (a)Nickel (b)Zirconium (c) Tin

Question

$\begin{array}{1 1}(A) \text{(a) Refining of nickle : Liquidation , (b) Refining of zirconium : Mond's process (c) Purification of Tin : Van-Arkel Method}\\(B)\text{(a) Refining of nickle :- Mond's process , (b) Refining of zirconium : Liquidation (c) Purification of Tin : Van-Arkel Method}\\(C)\text{(a) Refining of nickle :- Mond's process , (b) Refining of zirconium : Van- Arkel Method (c) Purification of Tin : liquidation}\\(D)\text{None of the above}\end{array}$