An example of a government corporation is
nasa
the state department
amtrak
the cia

Amtrak

Explanation:

 Amtrak is the example of the government corporation as, it is the corporation that are maintained by the government of the united state. It is basically set up and runs by the government and sometimes by the independent companies also.Amtrak are stand for the national railroad passenger corporation and the federal branch of government owned the stocks of the amtrak.

the first settlements began along the huang river because of the importance of the huang river in the beginning of china. it goes back to the story, “the tale of emperor yu”, which references the tale of the great flood, which was caused by the huang river and was believed to create and influence china’s making.

it would be d). more resources must be obtained to attain that combination of goods and services