Answer:c. focus group
Explanation:A focus group is demographically diverse group with fewer people who are used to gauge what a reaction of the rest of the public would be concerning a new market or a political issue. In this group a researcher leads discussions concerning that new product or political issue , in which everyone voices their opinions in this group of diverse individuals. How this small group react to this brought up issue will give an idea of what can be expected out there with the rest of the population. This is a qualitative research , people state their beliefs, opinions , perceptions and attitudes towards that concept in discussion.
A researcher takes notes during an interactive discussion.