Which of the following abilities is typical at 24 months?

At 24 months, children typically reach several developmental milestones, particularly in their motor skills and social behaviors. While standing on one foot is a skill more commonly developed around the age of 3 to 4 years, the ability to hold utensils is a typical milestone at this age.

Children at 24 months often begin to experiment with independently using utensils while eating, though it may not always be coordinated. They are also starting to stack 3-4 blocks, demonstrating their improving fine motor skills and hand-eye coordination. Additionally, sharing toys is associated with social development and begins to emerge around this age, but full sharing behavior develops later.

Thus, the focus here is on the fact that standing on one foot is not a milestone typically observed at 24 months, while the other activities align more closely with the abilities expected from toddlers at this developmental stage.