Option C, Survey
Explanation:
The general definition of survey research is a systematic approach for collecting information by numerous survey questions from a sample of respondents.
Public opinion polls, reports on public health, consumer studies, policy investigations and censuses all provide examples of quantitative research that uses polling methodology to address demographic questions.
Surveys can take multiple forms, but they are most often written or online in the form of a questionnaire. Essentially, a survey is a way of collecting data from a sample of people, usually in order to generalize findings for a larger population.
