After her recent flight to paris, linda received an email from delta airlines, asking her to rate the flight crew's performance and her satisfaction with her flight experience. what form of marketing research is delta using

The type of marketing research that Delta is using when they ask Linda her satisfaction in regards of the performance of the flight crew and her experience is survey. It is because a survey is a way of providing questions to an individual in which they are likely to rate the question or chose for the answer that best suits the question.