Which of the following materials would most likely float in freshwater?
A) A gold ring (\( \rho = 19.3 \, \text{g/cm}^3 \))
B) A glass marble (\( \rho = 2.5 \, \text{g/cm}^3 \))
C) A plastic bottle (\( \rho = 0.9 \, \text{g/cm}^3 \))
D) An iron bolt (\( \rho = 7.9 \, \text{g/cm}^3 \))
