Alanis has to collect primary data for the floral company for which she works. The company, which is currently based in Miami, Florida, is seeking to expand to other cities within the state. Alanis is interested in gauging what motivates people to buy flowers and customers' attitudes toward online flower delivery.

Which of the following primary research methods would best capture the information Alanis wants to collect?

a. Controlled experiments
b. Case studies
c. Surveys
d. Syndicated data service
e. Observation