Which of the following conditions occurring in a mother's pregnancy provides a clue that the newborn might have a gastrointestinal tract anomaly? 1. Meconium in the amniotic fluid. 2. Low implantation...

Which of the following conditions occurring in a mother's pregnancy provides a clue that the newborn might have a gastrointestinal tract anomaly?

1. Meconium in the amniotic fluid.

2. Low implantation of the placenta.

3. Increased amount of amniotic fluid.

4. Toxemia in the last trimester.