Which is a characteristic of open edition prints?

Open edition prints are characterized by their ability to be reproduced without a limit on the number of copies produced. This means they are more accessible and can be found in various forms, including posters or smaller reproductions. The unlimited nature of open edition prints allows them to reach a broader audience, making art more affordable and widely available. This characteristic differentiates them from limited edition prints, which have a set number of copies and are often marketed as more exclusive and collectible.

Other options describe features of prints that are found in different categories. The rarity or exclusivity mentioned in the first choice pertains to limited edition prints. The second option relates to the practice of numbering, which is not applicable to open editions. Limited availability mentioned in the fourth option also aligns more closely with limited edition prints, which are restricted in number to create scarcity. Open editions, in contrast, are abundant and easily obtainable, illustrating why the correct answer focuses on their presence in common formats.