What research method would you use for the study that has the research objectives$/$ questions below?

Brand: Canada Dry

Research Objective: To understand consumers' reactions and attitudes toward a new flavor for a line of soft drinks

Specific Research Questions:

What are consumers' initial reactions to the new flavor?

How do consumers describe the taste and appeal of the new flavor?

What suggestions do consumers have for improving the new flavor?

What concepts or ideas do consumers associate with the new flavor?

Survey

Observation

Focus groups

Mystery shopper