The research method used for solving a real problem in one's own working field is called
Acase study
Bexperimental research
Caction research
Dhistorical research
Answer:
C. action research
Read Explanation:
The research method used for solving a real problem in one's own working field is called "action research".
Action research focuses on finding practical solutions to immediate problems within a specific context, like a workplace, by actively engaging with the situation to implement changes and observe their effects.