How Is Consumer Panel Data Collected During the Test Marketing

Multiple Choice

How is consumer panel data collected during the test marketing phase of a new product introduction?

A) Panelists complete a questionnaire about the product.
B) Panelists scan their receipts on a home scanning device.
C) Stores provide sales data to companies.
D) Consumers voluntarily go to a website to record their preferences.
E) Focus groups are held in key markets.