Answer:
The answer is: Participatory action research.
Step-by-step explanation:
Participatory action research is focused on providing a space for the voices of the participants to be heard; in this methodological approach, the research participants don't provide data, instead they are active participants in the entire research process making decisions with the researcher.
Participatory action research is commited to social change, the participants tend to be marginalized or vulnerable communities and among the objectives of the research, besides the production of knowledge, it seeks to empower the communities and help them find solutions for their problems. Therefore, according to research design provided in the question, participatory action research is the method that must be used.