Which of the following are key developmental milestones for a 2-year-old child?

The key developmental milestones for a 2-year-old child include walking, talking in simple sentences, and beginning to exhibit independence. At this age, children typically develop gross motor skills such as walking and running. They also make significant strides in language development, often beginning to combine words into simple sentences and expanding their vocabulary. Furthermore, 2-year-olds start to show a desire for independence as they explore their environment, make choices, and assert their autonomy.

On the other hand, reading simple books and writing letters is more typical of older preschoolers or kindergarten-aged children. Solving puzzles and understanding complex instructions usually occurs later on as cognitive development advances. Similarly, drawing detailed pictures and performing simple math tasks are skills that are generally developed in children who are older, around 4 to 5 years old.