Which of the following demonstrates understanding of age-appropriate activities for a 2-year-old?

The choice regarding sending the child's favorite stuffed animal during naps away from home illustrates an understanding of age-appropriate activities for a 2-year-old. At this developmental stage, children seek comfort and security, especially when they are away from familiar environments or caregivers. Having a favorite stuffed animal can provide emotional reassurance and help them cope with separation anxiety, which is common for toddlers.

The other choices reflect expectations that surpass the developmental abilities of a typical 2-year-old. Reciting the alphabet involves a level of cognitive and language development that is generally expected later, around preschool-age, as children are just beginning to form simple sentences and express their needs at this age. Assigning homework is not appropriate for toddlers, as they are still developing basic motor skills and primary play behaviors; structured educational activities like homework are more suitable for older children. Lastly, riding a bicycle typically requires a level of motor coordination and balance that most 2-year-olds have not yet developed, as they are generally just beginning to master skills like walking and running. Thus, sending a favorite stuffed animal aligns with the emotional and developmental needs of a 2-year-old, demonstrating a sound understanding of appropriate activities for their age.