Given below are two statements :
Statement $I :$ Sickle cell anaemia and Haemophilia are autosomal dominant traits.
Statement $II :$ Sickle cell anaemia and Haemophilia are disorders of the blood.
In the light of the above statements, choose the correct answer from the options given below :

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