Concept:
Social work uses several professional methods to help individuals, groups, and communities solve problems and improve their well-being. These methods are generally classified into **primary methods** and **secondary methods**.
- Primary Methods of Social Work:
- Social Case Work
- Social Group Work
- Community Organization
- Secondary Methods of Social Work:
- Social Welfare Administration
- Social Research
- Social Action
Primary methods involve **direct interaction with individuals, groups, or communities**, whereas secondary methods support planning, policy-making, and program implementation.
Step 1: Identify the primary methods of social work.
Among the given options:
- Social Action – Secondary method
- Case Work – Primary method
- Social Research – Secondary method
- Social Welfare Administration – Secondary method
Thus, the correct answer is **Case Work**, which focuses on helping individuals solve personal and social problems through professional relationships.