Density of $$\text{CO}_2$$ gas at $$0^\circ\text{C}$$ and 2.00 atm pressure can be expressed as

A

$$2\ \text{g m}^{-3}$$

B

$$4\ \text{g m}^{-3}$$

C

$$4 \times 10^3\ \text{kg m}^{-3}$$

D

$$8\ \text{g L}^{-1}$$