A nurse is evaluating a care plan for a formula-fed newborn diagnosed with colic whose parents report increased crying and feeding difficulties. Which of the following nursing actions should the nurse implement first to address the newborn's symptoms and support the family?

Instruct the parents to provide frequent burping with every ounce of formula and to hold the infant upright for 30 minutes after feeding.

Encourage the parents to use rocking and swaddling to manage colic symptoms without the need to modify feeding techniques.

Recommend switching the infant to a soy-based formula

Advise the parents to increase the interval between feedings to reduce digestive workload on the infant.