Answer:B. Applied research
Step-by-step explanation:
Applied research is a research that seeks to find practical solutions to current issues faced by the society or individuals. This is a type of research that is used in the field of education, business and medicine. It is used to come up with innovative technology that can sort current struggles or improve life , to discover cure for diseases and tackling the challenging market for businesses.
Other common theories are more concerned with general issues and inventing theories related to those issues.