A uniform solid block is completely beneath the surface in a tank of water. The block has dimensions $x$ and $y$, as illustrated. It is kept vertical in the orientation shown. The density of the block is equal to the density of the water. If the block is maintained at the same depth $d$ below the water surface at all times, which single change would make the upthrust force on the block greater?
- Adecrease the density of the block
- Bhold the block horizontally
- Cincrease dimension $y$
- Dincrease the density of the block