Experimentally it was found that a metal oxide has formula `M_(0.98)O` .Metal M, is present as `M^(2+)` and `M^(3+)` in its oxide. Fraction of the metal which exists as `M^(3+)` would be `:`

Options

A. `5%`
B. `9.6%`
C. `8.3%`
D. `4.6%`