Which are geographic features of Northwestern Europe? A. The Rocky Mountains
B. The Sahara Desert
C. The Alps
D. Great European Plain

D. Great European Plain

Explanation:

To solve this problem we can use the process of elimination. The Rocky Mountains are located in the United States, not in Europe. The Sahara Desert is located in Africa., so it's also not the right choice. Although the alps are located in Europe, they're not in the Northwestern part of Europe. That leaves us with the Great European Plain, which is located in Northwestern Europe.