People First Language is a way of communicating respectfully and appropriately with and about people with disabilities. It puts the person before the diagnosis, describing what condition a person "has" rather than asserting what a person "is". It avoids using labels or adjectives that define or dehumanize someone based on their disability. Forexample, instead of saying "a diabetic", we can say "a person with diabetes". This way, we emphasize the person's individuality, personhood, and dignity, not their disability.
In the given options, only D. He is a person with autism follows the People First Language. It refers to the person first, and then to the condition that he has. The other options use offensive, insensitive, or outdated terms that imply negative stereotypes or limitations. For example, A. He is disabled suggests that the person is defined by his disability, and does not acknowledge his abilities or potential. B. She is brain damaged is a derogatory and inaccurate term that does not respect the person's cognitive or intellectual abilities. C. She is confined to a wheelchair implies that the person is trapped or restricted by their mobility device, rather than empowered or assisted by it. References:
https://www.cdc.gov/ncbddd/disabilityandhealth/materials/factsheets/fs-communicating-with-people.html
https://www.nih.gov/about-nih/what-we-do/science-health-public-trust/perspectives/writing-respectfully-person-