A nurse gathers information about the condition of homes, the size of lots, neighborhood hangouts, road conditions, and modes of transportation. Which method of data collection is being used?

A. Windshield survey: A method in which a nurse drives or walks through a community to observe its physical and social environment. B. Focus group: Involves structured discussions with selected participants, not direct community observation. C. Informant interviews: These involve one-on-one interviews with key community members, not environmental observation. D. Participant observation: This involves actively engaging in community activities, not just observing physical conditions.