Answer:
d. Quantitative
Step-by-step explanation:
Quantitative research: In scientific or psychological research, the term quantitative research is defined as research that is responsible for measuring statistical estimation, mathematical modeling, testifying objective theories, or statistical inference through the process of examination of the various relationships among different variables.
The quantitative research method involves information related to quantities and numbers.
In the question above, Alona is employing a quantitative research method.