Select from options: Continue writing the next sentence.

How to prepare for and recover after a frenuloplasty
Consider the risks of surgery.
All surgical procedures carry some risks, even those that are done in a physician's office or an outpatient surgical center.
Swelling and bruising are common following this type of surgery.

Options:
[A]. Swelling is caused by blood vessels narrowing within the pod. Side effects include swelling and inflamed scar tissue, redness, bruising, and blood clots.
[B]. In some rare cases, bleeding may be prolonged. An additional procedure may be needed to stop the bleeding.
[C]. Also use of crutches or walking aids may be recommended when this type of surgery sounds good to you. Your doctor will discuss these options with you and explain the pros and cons.
[D]. A surgeon cannot prescribe medicine for this procedure. In severe cases you will need to see a doctor at the hospital or emergency recovery facility.
Answer:
[B].