Of the objects below, __________ is the most dense.

- A) an object with a volume of 2.5 L and a mass of 12.5 kg
- B) an object with a volume of 139 mL and a mass of 93 g
- C) an object with a volume of 0.00212 m^3 and a mass of 4.22×10^4 mg
- D) an object with a volume of 3.91×10^-24 nm^3 and a mass of 7.93×10^-1 ng
- E) an object with a volume of 13 dm^3 and a mass of 1.29×10^3 g