In the context of a marketing research project, which of the following statements is true of secondary data?
a. They can be obtained from sources within a company and outside the company.
b. They cannot be used for comparisons with other forms of data.
c. They refer to the data collected for a specific market research purpose at hand.
d. They are not used in the problem identification stage of a market research.
Answer: a. They can be obtained from sources within a company and outside the company.