A. It is used for object deserialization.
B. It is used for object serialization.
C. Both of the above.
D. None of the above.

Solution

A. It is used for object deserialization.

Explanation

In Python, "pickling" and "unpickling" refer to the serialization and deserialization of objects, respectively. Serialization is the process of converting a Python object into a byte stream, and deserialization is the process of reconstructing the original object from the byte stream.