Which of the following is a typical developmental milestone for children around the age of 9 months?

The typical developmental milestone for children around the age of 9 months is crawling. At this age, many infants begin to explore their environment by moving on their hands and knees, which is an important stage in their motor development. Crawling helps strengthen their muscles and coordination, preparing them for future milestones such as standing and walking.

While pulling up to stand, saying first words, and walking independently are significant achievements in motor and language development, these milestones typically occur a bit later. Pulling up to stand often occurs around 9 to 12 months, while walking independently usually develops between 12 to 15 months. Saying first words generally begins around 10 to 14 months. Thus, crawling is the milestone that aligns most closely with the capabilities of a 9-month-old child.