(Solved): Let A = {a, b, c, d, e}, and let R= {(a, a),(a, c), (b, b), (b, d), (b, e), (c, a), (c, c), (d, b), ...

Let A = {a, b, c, d, e}, and let R= {(a, a),(a, c), (b, b), (b, d), (b, e), (c, a), (c, c), (d, b), (d, d), (d, e), (e, b), (e, d), (e, e)} be an equivalence relation on A. Which of the following is an equivalence class for R? O {a,b} ○ {b,d,e} o {a,c,d} o {a, b, c, d, e} o {a,b,c}