Final answer:
Placenta previa is the correct answer to the question as it is a complication that can result from prior pregnancies with fibroids. It occurs when the placenta partially or fully covers the cervix, which might be influenced by the location where the embryo implants in the uterus.
Therefore the correct answer is option A Placenta previa
Step-by-step explanation:
The question is asking which of the listed complications are associated with prior pregnancy complications due to fibroids. Placenta previa is a condition where the placenta partially or completely covers the opening of the cervix. This condition can be related to the implantation of an embryo near the internal os of the uterus, especially when the placenta develops in such a way as to obscure the cervical opening as the fetus grows.
Preterm labor is another complication that can be associated with pregnancy and fibroids. Conditions such as bacterial vaginosis can heighten the risk of preterm birth, which may also be influenced by the presence of fibroids. Ectopic pregnancy, typically occurring in the fallopian tubes, can be the result of scar tissue from infections but is not directly associated with fibroids. While gestational diabetes is a pregnancy complication, it is not specifically related to fibroids.