Which wetland plant, common in Arkansas swamps, is used for making mats and baskets?

Cattail is the correct choice because it is a versatile wetland plant commonly found in Arkansas swamps and is well-known for its strong, flexible stems and leaves, which have been used traditionally for crafting various items such as mats, baskets, and even clothing. The broad, flat leaves are suitable for weaving due to their pliability, making them ideal materials for these crafts.

In contrast, sedge, while it can be found in similar environments, is not typically used for basketry on the same level as cattails. Reed plants are primarily recognized for their role in certain ecosystems and are more associated with providing habitat than for basket-making. Bulrush is also a wetland plant but is less commonly used compared to cattails for these specific purposes. Hence, cattail stands out as the most suitable option for creating crafts like mats and baskets.