The Nurse in a Pediatric Clinic Is Preparing to Assess

The nurse in a pediatric clinic is preparing to assess an infant at the age of 9 months. The nurse is aware that this well-baby checkup will involve assessment for developmental delays or disabilities. Which finding causes the nurse to suspect a developmental delay?

A) Displays sucking reflex when presented with bottle or pacifier.
B) Cries and reaches for the parent when placed on the examination table.
C) Loses interest in an object that is dropped out of sight by the nurse.
D) Waves or shakes the head in response to verbal cues "bye-bye" and "no."