Today, eco-conscious people shop with reusable shopping bags. The bags are available in a wide variety of colors and patterns. One reusable bag can replace hundreds of paper bags and save many trees. Reusable bags also can replace plastic bags, which break down very slowly in our landfills. If more people shopped with reusable bags, Earth would be a healthier place.
What is the weakest reason for using reusable shopping bags?
A. They cut down on the use of plastic bags.
B. Reusable bags can save many trees.
C. They come in a variety of colors and patterns.