# Find the Difference Age Between x, y And X ?

Let X be that set of all citizens of India. Elements x, y in X are said to be related if the difference of their age is 5 years.

Which one of the following is correct ?

- The relation is an equivalence relation on X.
- The relation is symmetric but neither reflexive nor transitive.
- The relation is reflexive but neither symmetric nor transitive .
- None of the above .