It provides a protective barrier between the mother and the fetus. It keeps the fetus inside the mother until birth. It provides a navel when the baby is born. It supplies oxygen and nutrients to the fetus.
I am hesitating between 4 options to answer the following question, which option should I choose?
Question: Which statement describes how the umbilical cord supports a developing fetus?
Possibilities:
- It provides a protective barrier between the mother and the fetus.
- It keeps the fetus inside the mother until birth.
- It provides a navel when the baby is born.
- It supplies oxygen and nutrients to the fetus.

It supplies oxygen and nutrients to the fetus.