Final answer:
The components of government purchases in GDP are government spending on goods and services, consumption, and investment.
Step-by-step explanation:
In the calculation of GDP (Gross Domestic Product), government spending on goods and services is considered as one of the components of government purchases. This includes spending on public infrastructure, defense, education, healthcare, and other government services.
On the other hand, consumption refers to the spending by households on goods and services, investment refers to spending by businesses on capital goods and technology, and net exports refers to the difference between exports and imports.
Therefore, the correct components of government purchases in GDP are government spending on goods and services (Option 1), consumption (Option 2), and investment (Option 4).