According to Erikson, Which Behavior Demonstrates an Important Psychosocial Task

According to Erikson, which behavior demonstrates an important psychosocial task for a toddler to exhibit?

A) Acting defiantly by refusing to hold a parent's hand while crossing the street
B) Recognizing that it is wrong to take a toy away from someone else
C) Displaying an ability to understand the concept of time in hours
D) Expressing to parents and playmates when something is disliked