Which of the following anions are producing same gas on treatment with `(Zn+ " dil." H_(2)SO_(4))`.
`I :SO_(3)^(2-) " " II : HSO_(3)^(-) " " III : S^(2-) " " IV : Cl^(-)`
A. I and II only
B. I, II and III only
C. I, II, III and IV
D. I, III and IV only
