The compressibility factor of $\mathrm{N}{}_2$ at $300\mathrm{K}$ is $0.9985$ at $1\mathrm{atm}$, $0.98$ at $20\mathrm{atm}$ and $1.06$ at $200\mathrm{atm}$ (approximate values). Which statement is correct?

1. AAttraction dominates at $20\mathrm{atm}$ and excluded volume dominates at $200\mathrm{atm}$
2. BExcluded volume dominates at $20\mathrm{atm}$ and attraction at $200\mathrm{atm}$
3. CThe gas is above its Boyle temperature at $300\mathrm{K}$
4. DThe gas is ideal at $20\mathrm{atm}$