What is the domain of this relation? \[ \{-5,-3,1,3\} \] \[ \{-3,-2,-1,3,4\} \] \[ \{-3,-2,1,3\} \] \[ \{-5,-3,-1,4,5\} \]

Step 1 ：Combine all the given sets: \(\{-5,-3,1,3\} \cup \{-3,-2,-1,3,4\} \cup \{-3,-2,1,3\} \cup \{-5,-3,-1,4,5\}\)

Step 2 ：Remove duplicates and find the domain: \(\boxed{\{-5, -3, -2, -1, 1, 3, 4, 5\}}\)