A not-for-profit firm uses a small convenience sample to gather data on customer reactions. It invites a small group of customers for lunch and asks them to share what they think about the products they have purchased from the firm. This is an example of.

A. experimental research
B. neuromarketing
C. direct marketing
D. informal surveys

D. informal surveys is the correct answer

Explanation:

Informal survey objectives are to develop an understanding and to collect on the farmers' and customer's situations and also to plan the process to find a solution for these types of problems.In the informal surveys, data gathering process is iterative and interviews are semi directed which is  carried out by the interdisciplinary memberInformal surveys are also called as exploratory surveys.