When assessing speech development, which of the following children should the nurse refer for further examination? 1. A 4-month-old who laughs out loud. 2. A 10-month-old who says “dada” and “mama.”...

When assessing speech development, which of the following children should the nurse refer for further examination?

1. A 4-month-old who laughs out loud.

2. A 10-month-old who says “dada” and “mama.”

3. A 1-year-old who says three to five words.

4. An 18-month-old who only says “no.”