If the return statement is not used inside the function, the function will return:NoneNullArbitrary val

Understanding the Function's Return Behavior

In Python, if a function does not explicitly use a return statement, it will automatically return None. Here's a brief explanation of the behavior:

1. Default Return Value: Functions in Python return None if there is no return statement.
2. Return Statement Use: When a return statement is present, the function sends back the specified value.
3. Misleading Options: The options "Null" and "Arbitrary val" are misleading or incorrect in Python terminology, as Python uses None instead of null.

Final Answer

If the return statement is not used inside a function, the function will return None.