Which milestone category includes sentences that contain 2-4 words, following simple instructions, and beginning to run and walk up and down stairs?

• A. One Year Old Milestones
• B. Three Years Old Milestones
• C. Four Years Old Milestones
• D. Two Years Old Milestones

Answer: (D)

This describes milestones typical of a two-year-old. At this age, children often start combining words into short phrases, roughly two to four words long, and they can understand and follow simple instructions. They’re also beginning to develop gross motor skills like running and can start walking up and down stairs, usually with some help or support. This combination—short multi-word speech, following simple directions, and emerging stair-climbing with assistance—fits the developmental profile of a two-year-old, not younger children who use mostly single words or older children who speak in longer sentences and navigate stairs more independently.