Of the interhalogen compounds, `CIF_3` is more reactive than `BrF_3` , but `BrF_3` has higher conductance in the liquid state. The reason is that
A. `BrF_3` has higher molecular weight
B. `ClF_3` is volatile
C. `BrF_3` dissociates into `BeF_2^+` and `BrF_4^-` more easily
D. `CIF_3` is most reactive