Given below are two statements:
Statement-$I$ : In the metallurgy process,sulphide ore is converted to oxide before reduction.
Statement-$II$ : Oxide ores in general are easier to reduce.
In the light of the above statements,choose the most appropriate answer from the options given below :

• A
  Both Statement $I$ and Statement $II$ are correct.
• B
  Statement $I$ is correct but Statement $II$ is incorrect.
• C
  Both Statement $I$ and Statement $II$ are incorrect.
• D
  Statement $I$ is incorrect but Statement $II$ is correct.