Which answer best explains why the shaded area on the map above is significant in american history?

it represents areas in the west where gold was discovered in 1849.
it represents the northern boundary of the united states land holdings.
it represents territory owned by mexico that the united states later purchased.
it represents the oregon territory and a settlement between the united states and britain.

It represents the Oregon Territory and a settlement between the United States and Britain.

Explanation:

The area that is shaded in this map corresponds to the Oregon Territory. The Oregon Territory was an area that existed between 1848 and 1859 in the United States. From 1846, the Oregon Territory was divided between the United States and Britain. This territory included areas of what is now Oregon, Washington, Idaho, Wyoming and Montana.

the china one is last

explanation: