Which of the following statements about Persistence is correct?

• A. It is the enforcement of the class of an object, such that objects of different types may not be interchanged, or at the most they may be interchanged only in very restricted ways.
• B. It is the property of an object through which its existence transcends time and/or space.
• C. It is the property that distinguishes an active object from one that is not active.
• D. All of the mentioned