The Parent of a 5-Month-Old Is Worried Because the Infant

The parent of a 5-month-old is worried because the infant becomes fussy but doesn't always seem interested in nursing. What will the nurse practitioner tell this parent?

A) The infant may be expressing a desire to play or to rest.
B) The parent should give ibuprofen for teething pain before nursing.
C) This is an indication that the infant is ready for solid foods.
D) This may indicate gastrointestinal discomfort such as constipation.