The correct option is C Work of a teacher in the school
Any human activity which is performed in exchange for money or worth of that money is called an
economic activity. In other words, economic activities are those efforts which are undertaken by human being to earn an income. Economic activities result in the production of goods and / or services. People work because they look forward to getting a return, i.e. getting an income for doing
it. They then use this money to buy other goods and services to satisfy their wants and lead a
good quality of life. So working at home and working outside to get an income makes the difference as they move out of home for income.