Answer: B - Hypertension is not a known risk factor for ectopic pregnancy.
Advanced maternal age is a risk factor for various complications, including ectopic pregnancy. In vitro fertilization and other treatments for infertility, as well as infertility issues themselves, are also risk factors for ectopic pregnancy. Other risk factors include smoking, inflammation of the fallopian tubes, pelvic inflammatory disease, pregnancy after tubal ligation or while using an IUD, prior damage to the fallopian tubes, and previous ectopic pregnancy.