A nurse is providing anticipatory guidance about child development to the parents of a preschooler. Which of the following developmental tasks should the nurse include as being expected of a preschooler?

A. By preschool age, children are expected to follow more complex, multi-step directions, not just one-step instructions. B. Recognizing oneself in the mirror is an earlier milestone, typically occurring by 18 months. C. Collecting items like cards or toys is more common in school-aged children, not preschoolers. D. Associative play, where children interact and play with each other in a shared activity, is typical for preschoolers and reflects social development.