What is the result of applying the identity property of addition to the number 5?

The identity property of addition states that when you add zero to any number, the result is that same number. In this case, when applying the identity property to the number 5, it means that adding 0 to 5 will not change its value. Thus, 5 + 0 equals 5. Therefore, the correct result is that the number remains unchanged, which is 5. This property is fundamental in arithmetic and serves as a foundational concept in understanding how addition operates with respect to different entities in mathematics.