Solution:Concept- The number that, when added to another number, yields the same number is said to have additive identity.
Let, the additive identity element be ,
Then according to the question,
, Here is the number which by adding with the additive identity element remains the same.
Now, It implies that zero is the number which can be added to any number and gives the same number.
For example: Hence, the correct answer is option 1.