The charge on \[A{{s}_{2}}{{S}_{3}}\] sol is due to the adsorbed [MP PMT 1985]

• A. \[{{H}^{+}}\]
• B. \[O{{H}^{-}}\]
• C. \[{{O}^{2-}}\]
• D. \[{{S}^{2-}}\]