Statement-$1$: Members of Porifera are mostly asymmetrical.
Statement-$2$: Metamerism is present from members of Platyhelminthes to Chordata.

• A
  Statement-$1$ and Statement-$2$ both are correct.
• B
  Statement-$1$ and Statement-$2$ both are incorrect.
• C
  Statement-$1$ is correct and Statement-$2$ is incorrect.
• D
  Statement-$1$ is incorrect and Statement-$2$ is correct.