Statement $X$: All the various biochemical reactions occurring in every cell of a living organism are collectively called 'metabolism'.
Statement $Y$: Growth occurs when the rate of anabolic processes is greater than the rate of catabolic processes.

• A
  Both Statement $X$ and Statement $Y$ are incorrect.
• B
  Statement $Y$ is the correct explanation of Statement $X$.
• C
  Both Statement $X$ and Statement $Y$ are correct.
• D
  Statement $X$ is correct and Statement $Y$ is incorrect.