Correct Answer: Investment spending on new factories

Solution : The correct answer is (a) Investment spending on new factories

Gross Domestic Product (GDP) measures the total value of goods and services produced within a country's borders during a specific time period. In the calculation of GDP, investment spending on new factories, equipment, and structures is considered as part of the "investment" component of GDP. This includes expenditures made by businesses to expand their productive capacity and contribute to economic growth.