Where can ectopic pregnancies occur?

Ectopic pregnancies can occur in various locations outside of the uterus, which makes option B the correct choice. In an ectopic pregnancy, the fertilized egg implants in a place other than the inner lining of the uterus. The most common sites for ectopic pregnancies include the fallopian tubes, but they can also occur in the ovaries, the infundibulum (the funnel-shaped end of the fallopian tube), and the cervix. Additionally, ectopic pregnancies may sometimes occur in the abdominal cavity, but these locations are less common.

The other options are limited in scope. For instance, stating that ectopic pregnancies can only occur in the uterus ignores the definition of an ectopic pregnancy entirely, as by definition, these occur outside of the uterus. Focusing solely on the abdominal cavity or exclusively on the fallopian tube fails to consider the full range of potential sites where an ectopic implantation can happen. Understanding these various locations is crucial for recognizing potential complications and managing ectopic pregnancies in clinical practice.