Given below are two statements.
Statement $I$: Defecation is an involuntary process that takes place through the anal opening guarded by sphincter muscles.
Statement $II$: Distension of the rectum stimulates pressure-sensitive receptors that initiate a neural reflex for egestion.
In light of the above statements,select 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 and statement $II$ is incorrect.
• D
  Statement $I$ is incorrect and statement $II$ is correct.