Where Would You Expect a "Rain Shadow" to Occur in the United

Where would you expect a "rain shadow" to occur in the United States?

A) on the western side of the Cascade Mountains, in the Pacific Northwest
B) on the western side of the Appalachian Mountains, in the eastern United States
C) on the eastern side of Lake Ontario, in upstate New York
D) on the eastern side of the Sierra Nevada mountains, in Utah