What population of interest is being considered in the magazine subscriber survey?

The population of interest in the magazine subscriber survey is the group that the findings of the survey are intended to reflect or inform about. In this case, "People who read the magazine" is the correct choice. This group is significant because the survey's results are aimed at understanding the behaviors, preferences, or demographics of those who engage with the magazine's content. The survey may include responses from subscribers who might not actively read the magazine, but the focus is specifically on those who do read it, as their habits and opinions directly influence the magazine's future direction, marketing, and content development.

The other options do not accurately represent the population of interest for this survey. The general public encompasses a broader audience that goes beyond just magazine readers, while all magazine subscribers might include individuals who do not regularly read the magazine. The mention of "64% of respondents" refers to the survey's results rather than the population of interest itself, which is aimed at providing insights specifically about the readership of the magazine.