What is the "self" parameter utilized for in a class definition block?

It is used within the class and method definitions to call other methods on the same object, or to access that object's variables or data.

It is used to define the scope of the class in relevance to the rest of the program.

It is used to tell the Python virtual machine that the class is locally significant in the particular module or script it is defined.

It is used as a shortcut rather than typing out the module name, parent classes, and subclass to which the class belongs.