counter = 0 def increment(): >>>>counter += 1 increment() print(counter) What will be displayed on the screen and why?

The code will produce an error UnboundLocalError: local variable 'counter' referenced before assignment.

The reason is that inside the increment() function, there is an attempt to modify the variable counter using counter += 1. By default, Python treats counter inside the function as a local variable. But before assignment, it is not initialized, which causes the error.

To fix this, you need to explicitly specify that counter is a global variable:

counter = 0
def increment():
    global counter
    counter += 1

increment()
print(counter)  # Will output 1