Match the List-I and List-II using the correct code given below the list.
| List-I |
List-II |
| A. Hydrogenation of unsaturated vegetable oils |
1. Rocket fuel |
| B. Calcium hydride |
2. Welding of metals |
| C. Liquid hydrogen |
3. Desiccant |
| D. Atomic hydrogen |
4. Margarine |
Code: (a) A-4, B-3, C-1, D-2
(b) A-3, B-4, C-2, D-1
(C) A-1, B-3, C-4, D-2
(d) A-2, B-1, C-4, D-3
