The correct answer is: B. Teaching teacher in the school
An economic activity is an activity that is undertaken to produce or sell goods or services in order to earn income. Teaching in a school is an economic activity because it involves the production of a good (education) that is sold to consumers (students).
The other options are not economic activities because they do not involve the production or sale of goods or services. To teach a son at home is a personal activity that is not undertaken for financial gain. To serve her child by the mother is a household chore that is not considered to be an economic activity. To play football by a student is a recreational activity that is not undertaken for financial gain.
Here is a more detailed explanation of each option:
- A. To teach a son at home
This is not an economic activity because it does not involve the production or sale of goods or services. The father is not teaching his son in order to earn income. He is teaching his son because he wants to help his son learn.
- B. Teaching teacher in the school
This is an economic activity because it involves the production of a good (education) that is sold to consumers (students). The teacher is teaching in order to earn income.
- C. To serve her child by the mother
This is not an economic activity because it does not involve the production or sale of goods or services. The mother is serving her child because she wants to take care of her child. She is not serving her child in order to earn income.
- D. To play football by a student
This is not an economic activity because it does not involve the production or sale of goods or services. The student is playing football because he enjoys playing football. He is not playing football in order to earn income.