Given below are two statements:
Statement $I$: During $G_0$ phase of cell cycle,the cell is metabolically inactive.
Statement $II$: The centrosome undergoes duplication during $S$ phase of interphase.
In the light of the above statements,choose the most appropriate answer from the options given below:

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