Which of the following pairs of transition metal ion s are the stronger oxidising agents in aqueous solutions?

Options

A. `V^(2+)` and `Cr^(2+)`
B. `Ti^(2+)` and `Cr^(2+)`
C. `Mn^(3+)` and `Co^(3+)`
D. `V^(2+)` and `Fe^(2+)`