Answer:
Letter c is correct. Qualitative studies may be used to create theory.
Explanation:
The qualitative study is characterized as a methodology of scientific research that uses subjective rather than numerical aspects to conduct the study, ie, what is analyzed in this study is human subjectivity, their way of thinking, opinions, motivations, feelings and perceptions.
The technique for data collection can be performed through case study, focus groups, questionnaires, interviews and others. From the analysis of the collected data it is then possible to establish the hypothesis or theory, which are the plausible and provisional answers found to solve the problem of qualitative research and which will guide in the search for new information.