What seeming contradiction is apparent in this poster?

A.
The poster targets Native Americans, trying to get them to buy land that they technically already owned.

B.
The poster targets white settlers but encourages them to move onto land reserved for Native Americans.

C.
The poster targets those wishing to escape the city but attempts to encourage the founding of new cities.

D.
The poster targets those who want to make money out west without explaining the costs of mining tools.

B. The poster targets white settlers but encourages them to move onto land reserved for Native Americans.

The seeming contradiction apparent in this poster is option B. The poster targets white settlers but encourages them to move onto land reserved for Native Americans. This seems contradictory because the land is reserved for Native Americans, suggesting that it should not be settled by white settlers.