Which of the following is true of the processes and tasks used to carry out market research?

a). Since a market researcher does not encounter problems in using census data, it is considered the best source of demographic information.
b). Data contained in a census often omit items of interest to researchers.
c). All nations take censuses and publish their census reports in English.
d). Data contained in a census do not vary from country to country.

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b Data contained in a census often omit items of interest to researcher... View the full answer