Consider the following reaction: 5H\({}{2}\)O\({}{(y)}\)+ S\({}{2}\)O\({}{3}\)\({}^{2}\)+ 4Cl\({}{2}\)\({}{(aq)}\)\(\rightarrow\)[yields] 8Cl\({}{(aq)}\)+ 2SO\({}{4}\)\({}^{2}\)\({}{(aq)}\)+ 10H\({}^{+}\). What is the oxidizing agent in this reaction?

W) Cl

X) S\({}{2}\)O\({}{3}\)\({}^{2}\)-

Y) Cl\({}{2}\)

Z) H\({}{2}\)O
Y) Cl\({}{2}\)