The statement:
b. false
is correct.
All goods and services are not exclusively produced either by the government or the private sector. In reality, production often involves a combination of both sectors. The government typically provides certain goods and services such as public infrastructure (roads, bridges), defense, law enforcement, education, and healthcare in many countries. Meanwhile, the private sector produces goods and services ranging from consumer products to professional services and operates in industries like technology, finance, retail, and manufacturing.
The allocation and extent of production between these sectors can vary widely based on economic systems, government policies, and societal needs, but it's rare for production to be entirely exclusive to either the government or the private sector across all goods and services.