When Assisting a 5-Year-Old Child to Develop the Ability to Delay

When assisting a 5-year-old child to develop the ability to delay gratification,it is most valuable for the nurse to:

A) teach parents to assign a point system for expected daily activities.
B) develop the nurse-patient relationship during unstructured playtime.
C) encourage the child to express feelings when feeling frustrated.
D) model the ability to delay gratification.