A pregnant woman goes to her obstetrician for her first ultrasound. After the exam is over, the doctor remarks, "It looks like the ribs are still developing, and I might even have seen some tiny fingers and toes." How many weeks pregnant is this woman?

Question

Quizplus · Accepted Answer

The development of ribs and fingers/toes usually occurs between weeks 5 and 8 of pregnancy, which falls under choice B. Any later than that and the doctor would have expected to see more advanced development.

A Pregnant Woman Goes to Her Obstetrician for Her First