Given below are the two statements.
Statement $I$: Only one strand in the transcription unit functions as a template and is called the antisense strand.
Statement $II$: The non-template strand of the transcription unit is called the sense strand.
In the light of the above statements,choose the correct 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.