Two identical containers, P and Q, are each partially filled with unequal amounts of sand. The centre of gravity of each container is marked $X$. Which container is the more stable, and why is it more stable?
- AP is more stable because it has a lower centre of gravity.
- BP is more stable because it has a smaller mass.
- CQ is more stable because it has a greater depth of sand.
- DQ is more stable because it has a higher centre of gravity.