For a, b ∈ R define a = b to mean that |x| = |y|. If [x] is an equivalence relation in R. Find the equivalence relation for [17].

• A. {,…,-11, -7, 0, 7, 11,…}
• B. {2, 4, 9, 11, 15,…}
• C. {-17, 17}
• D. {5, 25, 125,…}