Talar designs a survey to track how people feel about the impact of COVID-19 on their lives. She gives the survey to a random sample of 300 people in her community who are in their twenties. Ten years later, she takes another separate random sample of people in her community who are now in their thirties, and gives them the survey. Talar has created a _____ survey. Group of answer choices Retrospective Panel Cohort Trend