Final answer:
The persistent elevation of hCG levels after the removal of a hydatidiform mole is a sign that could indicate the potential development of Choriocarcinoma, a malignancy of the trophoblastic tissue.
Step-by-step explanation:
After the removal of a hydatidiform mole, a prolonged elevation of serum human chorionic gonadotropin (hCG) levels can indicate a potential malignancy. The correct answer to the question is B. Choriocarcinoma. hCG is a hormone produced during pregnancy, which among other functions, ensures that the corpus luteum continues to secrete progesterone to maintain the pregnancy. Elevated levels of hCG after the removal of a hydatidiform mole (a type of gestational trophoblastic disease) could signify that trophoblastic tissue remains or has become malignant, potentially leading to choriocarcinoma, a form of cancer. It is not typically associated with uterine rupture, hyperemesis gravidarum, or disseminated intravascular coagulation in this context.