A Mother Brings Her 22-Month-Old Child to the Well-Child Clinic

A mother brings her 22-month-old child to the well-child clinic for an evaluation. The mother states that this child does not seem to be developing like her sister's child of the same age. The nurse will perform which screening test that may provide information about the child's development?

A) MRI of the head
B) An EEG
C) A Denver II
D) Chromosomal study