Question

Filipe made a toy boat out of clay, but it kept sinking in the water. He changed the boat's design by making it slightly wider than before. Why did Filipe's new designed boat float on water?

a. He decreased the density by increasing the volume.
b. He decreased the density by decreasing the volume.
c. He increased the density by increasing the volume.
d. He increased the density by decreasing the volume.