Answer:
case study
Explanation:
<u>Case study is a research methodology in science especially in social science. It is an in-depth intensive and systematic investigation of a case i.e. a person, a group, a community, or a unit</u>. It help researchers to describe the complexity of a phenomenon in a natural setting.
Can I have the list of options, please?
The seed is the answer I believe.
Kag, and marbles
I hope this helps