Lightening, or dropping, is the process during which

A) the placenta is expelled from the mother's body.
B) the head of the fetus settles down in the pelvis.
C) the fetus moves through the birth canal.
D) anesthesia is administered to the mother.

Lightening

A term used in pregnancy to describe the moment when the baby's head drops down into the pelvis in preparation for birth, often occurring a few weeks before labor begins.

Fetus

A developing human from approximately eight weeks after fertilization until birth, characterized by rapid growth and the maturation of organs and systems.

Pelvis

The lower part of the torso in humans and other animals, enclosed by the pelvic bones and containing reproductive and digestive organs.