It made it easier to transport materials to all of the cities
The bill of rights was in the constitution, which was for the whole country. so i believe the answer would be d. national
They tend to work harder and enjoy their work more.
People who are intrinsically motivated are motivated by internal desires - for example, they want to learn a new thing, experience new events, and improve themselves from the inside. On the other hand, people who are extrinsically motivated only want a particular material award, which isn't such a strong drive as internal motivation.
