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The domain represents the set of all possible x-values in the relation. To determine the domain, we need to find all the x-values that appear in the graph.
Looking at the given x-values, we can see that -2 is present in the relation. Additionally, 0, 1, and 5 are also present in the relation. However, -3 and 3 are not present in the relation.
Hence, the x-values (domain) that appear in the relation are -2, 0, 1, and 5.
Therefore, the correct choice for the domain is {-2, 0, 1, 5}.