d. they were low on money. That is the answer! I love history
The answer is A) Vassal. Hope this helps :D
When you say physical capital, it refers to the additional machinery, building, space etc.
Therefore an example of changing physical capital is B. Building extra space in the factory. By doing this, you are adding additional physical location in where your employee or worker can work.
No, there would be no pollution if there was no waste/ pollution.
