Arrange the following three-dimensional objects in the descending order of their volumes:
- A cuboid with dimensions $10$ cm, $8$ cm and $6$ cm
- A cube of side $8$ cm
- A cylinder with base radius $7$ cm and height $7$ cm
- A sphere of radius $7$ cm
- (i), (ii), (iii), (iv)
- (ii), (i), (iv), (iii)
- (iii), (ii), (i), (iv)
- (iv), (iii), (ii), (i)