Why is it important for the external sphincter to have voluntary control?

"The external muscle helps maintain continence and keep stool in the rectum. The inner muscle is not under voluntary control but rather is controlled by the autonomic nervous system. The external sphincter can be voluntarily controlled, meaning it can be clenched and unclenched"

Explanation:

answer: tell your parents first, and wait another couple of days. if it gets any worse, then you should call and ask. and you can always take pain meds if need be.

explanation:

answer:

i believe the answer is d).

explanation:

i think this is because you are tearing apart the muscle, and then when you eat, the muscle re-heals, making itself even stronger.

edit: i put b) before but i meant to put d). sorry for the incorrect answer.