Observe the following statements:
Statement-$I$: The choice of reducing agent for the reduction of an oxide ore can be predicted by using Ellingham diagram,a plot of $\Delta G^{\ominus}$ vs $T$.
Statement-$II$: According to Ellingham diagram,metal oxide with higher $\Delta G^{\ominus}$ is more stable than the oxide with lower $\Delta G^{\ominus}$.

• A
  Both statements $I$ and $II$ are correct
• B
  Statement $I$ is correct,but statement $II$ is not correct
• C
  Statement $I$ is not correct,but statement $II$ is correct
• D
  Both statements $I$ and $II$ are not correct