Which of the following is FALSE? a. Secondary data are typically much less expensive than primary data. b. Firms selling consumer goods normally target individual customers. c. The main disadvantage of secondary data over primary data is that the data may not always ideally fit the needs of the user. d. Effective segmentation demands that firms group their customers into relatively homogenous groups. e. A common segmentation base for firms takes into account the industry designation(s) of its customers.