During the research, the scientists collect the details and observations based on the information called data. Thus, option A is accurate.
What is data?
A data is set of facts and observations including textual information, graphs, images, etc. It includes all the measurements and observations collected during the research work. The hypothesis is a thesis statement or a theory.
Observation in research is the gained information and facts during the research process that involves the recording of the data using some sort of tools. While variable is the set that can vary or change.
Therefore, the correct option is A. data.
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