Answer:
e. secondary data; qualitative research.
Explanation:
A researcher who was developing a segmentation strategy for a new online dating service might collect secondary data, such as population statistics from the U.S. Census, then conduct qualitative research, such as a focus group, to gather information about the target population's attitudes and concerns. Secondary data refers to data taken from other sources than the actual researcher like population statistics. Focus groups are common in qualitative research to gather different points of view about an issue.