A block with a volume of 12 cm3 has a density of 3 g/cm3. The block is cut into two pieces. One piece has a volume of 8 cm3, and the other piece has a volume of 4 cm3. What are the densities of the two pieces? A. The larger piece has a density of 2 g/cm3 and the smaller piece has a density of 1 g/cm3. B. The smaller piece has a density of 2 g/cm3 and the larger piece has a density of 1 g/cm3. C. The two blocks both have densities of 1.5 g/cm3. D. The two blocks both have densities of 3 g/cm3.