Given below are two statements.
Statement $I$: Cephalic ganglion appears like $U$ shaped structure in Hydra.
Statement $II$: Ventral nerve cords are connected to each other by commissure in a ladder like manner in Planarian.
In the light of above statements,choose the most appropriate answer from the options given below:

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