The correct answer is D) provide labor and buy goods.
In order for the economy to be strong, individuals must provide labor and buy goods.
For the economy to prosper, there have to be enough jobs for people. If there are no employment problems, then people will have enough money or get credit to buy products and services. The more they but, the more companies can produce and create more jobs and invest in other projects.
The other options of the question were A) produce goods and pay workers. B) provide labor and pay workers. C) produce goods and buy goods.