Which motor development milestone is expected for a 9-month-old child?

At nine months of age, a child is typically expected to achieve the milestone of pulling to stand. This development indicates that the child is gaining strength and coordination in their legs and is beginning to learn how to transition from sitting to standing with support. Pulling to stand often occurs using furniture or other sturdy objects, which helps the child improve balance and stability.

For the other milestones mentioned, stacking objects usually emerges a bit later, often around 12 months when fine motor skills are more developed. Running and kicking, as well as independent walking, typically do not occur until around 12 to 15 months. At nine months, children are usually encouraging movement by crawling or scooting but may not yet be walking independently. Therefore, the expected milestone for a nine-month-old is pulling to stand, making it the correct answer to this question.