A. because i think that that is the right answer
<span>Hello there,
The Columbia Plateau is a geologic and geographic region that lies across parts of the U.S. states of Washington, Oregon, and Idaho. It is a wide flood basalt plateau between the Cascade Range and the Rocky Mountains, cut through by the Columbia River.
Hope this has helped you...Good Luck.
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I think the answer is True. Hope it help!
