Questionnaire data are: a. the facts and figures obtained by observing people's attitudes, awareness, intentions, and behaviors.
b. the facts and figures obtained by analyzing people's brain waves as consumers complete surveys about their geodemographics, ethnographics, and behaviors.
c. psychographic data obtained by asking people unbiased questions about their age, occupation, and income.
d. the facts and figures obtained by asking people about their attitudes, awareness, intentions, and behaviors.
e. any type of information about a consumer obtained through nontechnological methods.