For the transformation shown, select the most appropriate reagent(s) to effect the change. ?? H. O 1) OsO4 2) NaHSO3, H20 O H2SO4 H20 O 1) Hg(OAc)2 H20, 2) NABH4 O 1) 03. 2) DMs 1) RCO3H: 2) H3o*