Three types of fish populate a lake. Researchers
conducting a study want to know which type is most
common in the lake. They send teams to different
locations on the lake to catch, tag, and release as many
fish as possible.
What is the sample in this study?
A. All fish in the lake
B. Fish that are caught and tagged by the research teams
C. The type of fish with the greatest number
D. All fish caught in the lake during the study period