Statement $X$: Blood is transported to the cells in the body through blood vessels.
Statement $Y$: Blood pressure is high and regular.

• A
  Both Statement $X$ and Statement $Y$ are incorrect.
• B
  Statement $X$ is correct and Statement $Y$ is incorrect.
• C
  Both Statement $X$ and Statement $Y$ are correct,and Statement $X$ is the explanation of Statement $Y$.
• D
  Both Statement $X$ and Statement $Y$ are correct,and Statement $X$ is not the explanation of Statement $Y$.