After Balancing the Following Equation for the Reaction in Basic $\rarr$

Multiple Choice

After balancing the following equation for the reaction in basic media,
H₂O + CrO₄^2-(aq) + Br^-(aq) $\rarr$ CrO₂^-(aq) + BrO₃^-(aq) + OH^- what is the sum of ALL the coefficients in the equation? (Remember to include values of 1 in your summation.) Hint: Start by balancing each half-reaction.

A) 6
B) 8
C) 9
D) 10
E) 14