Economics is regarded as a social science because It

Step 1: Analyze the question The question asks why Economics is classed as a social science. We need to look at what "social science" means.

Step 2: Explain the concept A social science is a field that studies human beings and their behavior in society, using systematic, scientific methods. Examples include Economics, Sociology, Political Science, Psychology, and Geography (human aspects). Economics is defined as the study of how people choose to use scarce resources to satisfy unlimited wants. That is a study of human behavior: how people make choices.

Step 3: Check each option

• A. Helps people to be acceptable in society. Wrong. This is about social etiquette or moral training, not the nature of a discipline.
• B. Is associated with social clubs. Wrong. "Social" here has nothing to do with clubs.
• C. Is used by sociologists. Wrong. Many fields are used by sociologists, and this does not make Economics a social science.
• D. Studies human behavior. Correct. Economics examines how individuals, firms, and governments behave when making choices about production, distribution, and consumption.
• E. Uses controlled experiment. Wrong. Controlled experiments are characteristic of natural (physical) sciences like Physics and Chemistry. Economics mostly relies on observation, data, and models, since human behavior is hard to control in a laboratory.

Step 4: Answer The correct option is D.

Tip: In exams, remember: Natural sciences study nature (controlled experiments); social sciences study people (human behavior). If you see "social science" in a question, look for "human behavior" or "society" in the options.