Step 1: Understanding the Concept:
Sociology is divided into micro and macro levels.
Each level focuses on different aspects.
Step 2: Key Formula or Approach:
No specific formula.
Need to understand micro-sociology.
Step 3: Detailed Explanation:
Micro-sociology focuses on face-to-face interactions.
It studies small groups and individual interactions.
Macro-sociology focuses on large-scale processes.
Thus, micro-sociology focuses on face-to-face interactions.
Step 4: Final Answer:
Micro-sociology focuses on face-to-face interactions of people.
Hence, the correct option is (A).