Which of the following is a fine motor skill exhibited by a child at 1-1.5 years old?

A child aged 1 to 1.5 years typically demonstrates emerging fine motor skills, which are important for tasks that require precision and coordination. At this age, scribbling with a crayon is a significant milestone in fine motor development. It reflects not only the child's ability to grasp and manipulate a writing instrument but also their burgeoning control and creativity in using it. Scribbling serves as an early form of expression and intentional mark-making, laying the groundwork for future writing skills.

While the other options describe skills relevant to fine motor development, they are often associated with different developmental stages. For instance, picking up small objects with a pincer grasp is generally observed a bit earlier, around 9-12 months, while turning pages of a book typically develops after the child has gained more dexterity, usually around 2 years. Dropping objects is an earlier exploratory behavior that doesn't require the same level of skill and coordination as scribbling.