Read the given statements and choose the correct option:
< b>Statement-$I$: In Calvin cycle,carboxylation is catalysed by $PEP$ carboxylase.
< b>Statement-$II$: In Hatch-Slack pathway,carboxylation is catalysed by $RuBP$ carboxylase.

• A
  Statement $I$ is false but Statement $II$ is true
• B
  Both Statement $I$ and Statement $II$ are false
• C
  Both Statement $I$ and Statement $II$ are true
• D
  Statement $I$ is true but Statement $II$ is false