Which Child Demonstrates Behaviours Indicative of a Neurodevelopmental Disorder

Which child demonstrates behaviours indicative of a neurodevelopmental disorder?

A) A 4-year-old who stuttered for 3 weeks after the birth of a sibling
B) A 9-month-old who does not eat vegetables and likes to be rocked
C) A 3-month-old who cries after feeding until burped, then sucks a thumb
D) A 3-year-old who is mute, passive toward adults, and twirls while walking