Which of the following is not an economic activity?

Activities are broadly classified into economic and non-economic activities. Economic activities are those performed with the objective of earning a livelihood or generating profit. These include farming (primary sector), manufacturing (secondary sector), and transportation or professional services (tertiary sector).

In contrast, non-economic activities are driven by social, religious, emotional, or sentimental motives rather than monetary gain. Voluntary Social Service is a non-economic activity because it is performed out of altruism, sympathy, or a sense of duty toward society, without the expectation of payment or financial reward. Therefore, it does not contribute directly to the flow of goods and services in terms of market value or national income accounting in the traditional sense.