Answer:
(C) case study
Explanation:
CASE STUDY IS STUDY METHOD WHICH IS SEEN IN LIFE SCIENCE AND SOCIAL LIFE SCIENCE. CASE STUDY IS TO EXAMINE A PERSON, A GROUP OF PEOPLE, A UNIT OF PEOPLE AND GENERLISE THAT STUDY OVER SEVERAL UNIT OF PEOPLE. CASE STUDY CONDUCTED FACE TO FACE WITH THE COMMUNITY PEOPLE, A GROUP OF PEOPLE AND GENERALIZE THE STUDY. RESEARCHER DESCRIBE THE CASE STUDY PHENOMENON WORK FOR A COMPLEX PHENOMENON AND HELP IN UNDERSTANDING IN PROBLEM.
