A measuring cylinder that contains $50\,\text{cm}^3$ of water is placed on a balance. A solid object is then added to the cylinder, and the water level increases to $75\,\text{cm}^3$. What is the density of the object?
- A$0.80\,\text{g cm}^{-3}$
- B$2.4\,\text{g cm}^{-3}$
- C$2.8\,\text{g cm}^{-3}$
- D$8.4\,\text{g cm}^{-3}$