_ contains fertile farmland and produces 85% of the carpet sold in the US.

• A. Ridge and Valley
• B. Coastal Plain
C. Blue Ridge
O D. Appalachian Plateau

C. Blue Ridge

The correct answer is B. Coastal Plain. The Coastal Plain region contains fertile farmland and is responsible for producing 85% of the carpet sold in the US.

To determine the correct option, we need to understand the geographical features and carpet production of each region mentioned.

A. Ridge and Valley: The Ridge and Valley region is located in the Appalachian Mountains of the eastern United States. This region is known for its ridges and valleys formed by tectonic plate movements. However, there is no specific mention of fertile farmland or carpet production in this region.

B. Coastal Plain: The Coastal Plain region generally refers to the low-lying, flat areas along the Atlantic coast. While this region may have some fertile farmland and possibly produce carpets, there is no specific indication that it accounts for 85% of the carpet sold in the US.

C. Blue Ridge: The Blue Ridge region is also part of the Appalachian Mountains. It is known for its scenic beauty, including the Great Smoky Mountains. While it may have some carpet production, there is no specific mention of it being a major producer of carpets or accounting for a significant percentage of the US market.

D. Appalachian Plateau: The Appalachian Plateau is an area of elevated flatlands and mountains in the Appalachian Mountain range. It features fertile farmland and is known for being a prominent producer of carpets. Given this information, it is likely that the Appalachian Plateau is the correct option.

In conclusion, the correct answer is option D. Appalachian Plateau, as it contains fertile farmland and produces 85% of the carpet sold in the US.