Answer:
A. intercept
Explanation:
In research, the term intercept research refers to a type of data gathering where the researcher gathers the data on a particular site from people that are located there and regarding a topic that is related to this site.
This kind of surveys are used in restaurants, malls, stores to ask your opinion about a product or a service you were given there.
In this example, you are shopping at the mall and a researcher stops you to solicit your opinion on a new product. This person is asking your opinion on a topic that has to do with the product found at the mall and your opinion about a product you got there. Therefore this is an example of an Intercept research.