Select the correct answerWhat will be the output of the following Python code?def ct(y): global y y+=2 print(y)ct(5)print("hi")Optionserror77hihi

Break Down the Problem

1. Identify the Code Components:
   • Function definition (def ct(y)) with a global variable y.
   • Incrementing the global variable y by 2.
   • Printing the value of y.
   • Calling the function ct(5).
   • Printing the string "hi".

Relevant Concepts

2. Understanding Global Variables:
   • The global keyword allows the function to modify the variable defined outside its scope.
   • The function ct expects an argument (y), which is local to the function.

Analysis and Detail

3. Execution Steps:
   1. When ct(5) is called:
      • y is treated as a global variable initially undefined.
      • The argument passed (5) is assigned to the local parameter y.
   2. The statement y += 2 attempts to increment the undefined global y by 2.
   3. Since the global y has not been initialized, this results in an UnboundLocalError, indicating that the local variable y refers to the global variable y which has not been assigned a value yet.

Verify and Summarize

4. Error Encountered:
   • The code will raise an UnboundLocalError since y is referenced before being assigned a value globally.

Final Answer

The output of the code will be an error: UnboundLocalError.