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A data engineer that is new to using Python needs to create a Python function to add two integers together and return the sum. Which of the following code blocks can the data engineer use to complete this task?

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KKeng

Last updated: January 13, 2026 at 09:03

function add_integers(x, y):
    return x + y

function add_integers(x, y):
    return x + y

function add_integers(x, y):
    x + y

function add_integers(x, y):
    x + y

def add_integers(x, y):
    print(x + y)

def add_integers(x, y):
    print(x + y)

def add_integers(x, y):
    return x + y

def add_integers(x, y):
    return x + y

def add_integers(x, y):
    x + Y

def add_integers(x, y):
    x + Y

Explanation:

Explanation

Option D is the correct answer because:

Correct function definition syntax: Python uses def keyword to define functions, not function keyword (which is used in other languages like JavaScript).
Proper return statement: The function uses return x + y to actually return the sum to the caller.
Case-sensitive variable names: It uses consistent lowercase y variable (not uppercase Y).

Why other options are incorrect:

Option A: Uses function keyword instead of def - this is not valid Python syntax.
Option B: Uses function keyword and lacks a return statement - the function would return None.
Option C: Uses print() instead of return - this prints to console but doesn't return the value to the caller.
Option E: Has a typo with uppercase Y (should be lowercase y) and lacks a return statement.

Key Python concepts:

Functions are defined with def function_name(parameters):
The return statement sends a value back to the caller
Python is case-sensitive (y ≠ Y)
print() outputs to console but doesn't return a value for further processing

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