Answer: a. quantitative
Step-by-step explanation:
Quantitative Research aims to gather numerical data on which statistical functions such as mean, mode and other more complex calculations can be carried out. Here, the research will gather numerical data, so it is quantitative.
Qualitative Research on the other hand uses/gathers non-numerical data, usually through interviews.
An interview is a method adopted in research, and involves a back and forth conversation between the researcher and the target audience.