The mother of an infant with iron deficiency anemia asks the nurse what she could have done to prevent the anemia. The nurse should teach the mother that it is helpful to introduce solid foods into...

The mother of an infant with iron deficiency anemia asks the nurse what she could have done to prevent the anemia. The nurse should teach the mother that it is helpful to introduce solid foods into the infant's diet at age:

1. 1 to 2 months.

2. 5 to 6 months.

3. 8 to 10 months.

4. 10 to 12 months.