Answer:
Primary studies.
Explanation:
The study approach which gives the researcher control over items like selection of a source population, and the content and wording of a questionnaire is known as primary studies.
A primary study is a research methodology that is typically focused on having the researcher collect data directly rather than being dependent on a research that was conducted earlier or previously.
This ultimately implies that, a primary study avails a researcher the opportunity to own and have dominion or control over the entire research process.
I think the answer for the first one is (C): decrease soreness. but the answer for the second one is (D): restore brain cells
<span>Do all wheelchairs have to be secured so that the user is facing the curb side of the vehicule.
-True
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