Answer:
C. correlation
Step-by-step explanation:
Correlation analysis refers to the process of evaluation of the data through statistical means. The relationship that exists between the given variables is marked and evaluated. The intensity of the relationship between the two or more variables is measured and this helps in evaluating the correlation between them. The higher the correlation, the strong is the correlation and vice-versa.
In the given excerpt, the researcher can adopt the correlation analysis to evaluate the correlation between the number of hours is sleeps and the way he behaves.