Please see question attached.

The Nurses Health Survey was a survey where nurses were asked to record their eating habits over a period of time, and their general health was recorded. Is this a cross-sectional study, a retrospective study, or a prospective study? CROSS-SECTIONAL STUDY: study uses data observed, measured, or collected at one point in time O PROSPECTIVE STUDY: study uses data collected in the future from groups sharing common factors. O RETROSPECTIVE STUDY: study uses data collected from the past using records, interviews, and other similar artifacts