The correct answer is: 4
Explanation
This is a basic addition problem where you add the numbers 2 and 2 together. Addition combines two quantities to find the total.
Steps:
- Recognize the problem: \( 2 + 2 \)
- Add the two numbers: \( 2 + 2 = 4 \)
- The sum is 4.
Therefore, 2 + 2 = 4.