What type of clay is referred to as "greenware"?

"Greenware" refers specifically to unfired pottery and encompasses clay pieces that are in various stages of drying, such as leather-hard and bone-dry. At the leather-hard stage, the clay has lost some moisture and can be carved or joined to other pieces, while bone-dry indicates that the clay is completely dry and ready for firing. This terminology is crucial in pottery and ceramics as it signifies the state of the clay before it undergoes the transformation through firing.

In contrast, clay that is ready to be fired would actually be in a state that can be described as bisqueware, where it has already been through the first firing process. Similarly, clay that has been fired once refers to items that are no longer considered greenware. The clay mixture used for decoration usually contains additives or different compositions aimed at achieving particular artistic effects, rather than referring to the stages of the clay itself. Therefore, option B accurately captures the definition of greenware within the pottery-making process.