[JohnTan]

Hello,
Just wondering about this question about common oxidation states: which of the following includes the transition metals in common oxidation states (i.e. oxidation states observed for the ions in aqueous solution in the presence of dioxygen)?
A) V^V, Cr^VI, Mn^II
B) Ti^II, V^IV, Cr^III
C) Cr^III, Mn^III, Fe^III
D) Ti^II, V^II, Mn^II
E) Fe^III, Co^II, Cu^III

From what i've read, it seems to me like several of these are correct