\[ \begin{array}{l} \text { Comprehension } \quad \text { For the reaction: } \mathrm{MnBr}_{2}+...

\[
\begin{array}{l}
\text { Comprehension } \quad \text { For the reaction: } \mathrm{MnBr}_{2}+\mathrm{PbO}_{2} \\
+\mathrm{HNO}_{3} \rightarrow \mathrm{HMnO}_{4}+\mathrm{Pb}\left(\mathrm{BrO}_{3}\right)_{2}+\mathrm{Pb}\left(\mathrm{NO}_{3}\right)_{2}+\mathrm{H}_{2} \mathrm{O} \\
\text { (Atomic masses: } \mathbf{M n}=\mathbf{5 5}, \mathbf{B r}=\mathbf{8 0}, \mathbf{P b}=\mathbf{2 0 8})
\end{array}
\]
(Atomic masses: \( \mathrm{Mn}=55, \mathrm{Br}=\mathbf{8 0}, \mathrm{Pb}=\mathbf{2 0 8} \) )
The equivalent weight of \( \mathrm{MnBr}_{2} \) is
(a) 107.5
(b) 215
(c) 12.65
(d) 19.55