Establishing quotas on importsThe region labeled with the number 4 on the map is known as the . A. Great Basin B. Great Plains C. Coastal Plains D. Rocky Mountains

Option B

Explanation:

The region labeled with the number four on the map is known as the Great plains located in the United States and Canada which lies west of Mississippi River and East of Rocky Mountains in the United States and Canada. The Great Plains encompasses ten states in United States and southern portions of Alberta, Saskatchewan, and Manitoba in Canada.

Great Plains have a wide range of weather that is suitable for agricultural purposes such as extensive cattle ranching and dry farming (Livestock accounts for a large percentage) and this area primarily import manufactured products.

Note: This question is a Geography question.