Option A
internal secondary data would be the best choice for Wendy's fast food restaurants
Step-by-step explanation:
Secondary data is information that has been obtained for a determination other than your contemporary research project but has any significance and benefit for your research. Internal sources incorporate data that survives and is saved inside your company. Beforehand adapted marketing research statements may also be a large source of perspicacity as you attempt to determine a fresh or similar business problem.
Marketing researchers may also collect a huge volume of internal data into a partitioned database and handling marketing analytics to recognize designs in consumer behavior, market aims, and other penetrations to oversee management and retailing strategy judgments.