Which of the following is a milestone achieved at 24 months?

At 24 months, children typically reach several developmental milestones that indicate their growth in various areas such as motor skills, social skills, and verbal communication. One significant milestone for this age is the ability to verbalize toilet needs, reflecting their growing language skills and understanding of bodily functions. At this age, many children also begin to show interest in dressing themselves, which demonstrates independence and fine motor skills development.

The combination of being able to dress themselves and verbalize toilet needs highlights a critical period of self-awareness and the beginning of self-care skills in toddlers. These milestones show that they are starting to take on roles that help them interact more independently with their environment and caregivers.

While stacking 3-4 blocks is a skill that can emerge around this age, it is generally more associated with the developmental milestones seen in 18-month-olds. Thus, while stacking blocks is a valuable skill, the most significant achievements appropriate for a 24-month-old are the ability to dress themselves and communicate their needs regarding toileting.