A piece of metal ore weighs 8.25 g. when a student places it into a graduated cylinder containing water, the liquid level rises from 21.25 ml to 26.47 ml. what is the density of the ore in kg/m³? 
a) 3150 kg/m³ 
b) 4800 kg/m³ 
c) 5500 kg/m³ 
d) 6500 kg/m³