Options :

1. (a)-(iv), (b)-(iii), (c)-(i), (d)-(ii)

2. (a)-(iii), (b)-(ii), (c)-(iv), (d)-(i)

3. (a)-(i), (b)-(ii), (c)-(iii), (d)-(iv)

4. (a)-(ii), (b)-(iii), (c)-(iv), (d)-(i)