Which of the following is a 4-year gross motor milestone?

• A. Climbs stairs alternating feet without support
• B. Pedals tricycle
• C. Draws a person
• D. Writes name

Answer: (A)

Climbing stairs alternating feet without support is a four-year gross motor milestone. This skill shows developing balance, coordination, and leg strength that typically solidify around age four. It demonstrates the ability to plan and execute a sequence of large-muscle movements without needing help.

Pedaling a tricycle can occur around this period as well, but it’s more variable and not as specifically linked to the four-year mark. Drawing a person is more about fine motor control and cognitive aspects of drawing, not gross motor development. Writing a name is another fine motor skill that usually appears later, with more precision required.

So the interpretation that aligns best with a four-year gross motor milestone is the ability to climb stairs alternating feet without support.