Final answer:
None of the given options is a sign of bladder distention post-delivery; these terms relate to fetal positions, not maternal complications like bladder distention, which is characterized by symptoms related to urination difficulties.
Step-by-step explanation:
The sign of bladder distention post-delivery is none of the above options (A. Cephalic, B. Breech, C. Prolapsed cord). These options refer to fetal positions and conditions, not to maternal post-delivery complications like bladder distention. Bladder distention may present as difficulty urinating, frequent urination with little output, lower abdominal discomfort, or an inability to void completely. These symptoms occur when the bladder is overly full and cannot be emptied, which can happen after childbirth due to several factors, including the effects of anesthesia, trauma to the tissue surrounding the bladder, or swelling that obstructs the urinary outlet.