Given below are two statements.
Statement $I$: Cortisol decreases blood glucose level.
Statement $II$: Cortisol is used in the treatment of allergy as it suppresses the synthesis of antibodies.
In light of the above statements,select the correct answer from the options given below.

• A
  Statement $I$ is incorrect and 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 and statement $II$ is incorrect.