The instantaneous rate of disappearance of $MnO_4^-$ ion in the following reaction is $4.56 \times 10^{-3} \ Ms^{-1}$,$2MnO_4^- + 10I^{-} + 16H^{+} \to 2Mn^{2+} + 5I_2 + 8H_2O$. The rate of appearance of $I_2$ is
- A$1.14 \times 10^{-2} \ Ms^{-1}$
- B$5.7 \times 10^{-3} \ Ms^{-1}$
- C$4.56 \times 10^{-4} \ Ms^{-1}$
- D$1.14 \times 10^{-3} \ Ms^{-1}$
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