A nurse assessing an 8-month-old infant suspects the infant is experiencing sensory deprivation related to inadequate parenting. Since this assessment, both parents have attended parenting classes. However, both parents work while the infant stays with a grandparent, who has reduced vision. The parents provide appropriate stimulation in the evening. At an evaluation conference at the age of 11 months, the infant lies on the floor, rocking back and forth and has a dull facial expression with few vocalizations. Which nursing action would be appropriate for this patient and family?
a. Explore why the infant's parents lack motivation to provide necessary stimulation.
b. Remove the infant from the grandmother's care as the child has not progressed.
c. Suggest counseling since the infant's sensory deprivation is still severe.
d. No action is needed, as this is normal behavior for an 11-month-old infant.