In the following reaction sequence in aqueous solution, the species X, Y and Z, respectively, are

A

$$[Ag(S_2O_3)_2]^{3-}, Ag_2S_2O_3, Ag_2S$$

B

$$[Ag(S_2O_3)_3]^{5-}, Ag_2SO_3, Ag_2S$$

C

$$[Ag(SO_3)_2]^{3-}, Ag_2S_2O_3, Ag$$

D

$$[Ag(SO_3)_3]^{3-}, Ag_2SO_4, Ag$$