For the Reaction S₂O₈2 ^- (Aq)+ 3I ^- (Aq) $\rightarrow$ 2SO₄2 ^- Aq)+ I₃-(Aq),rate = K[S₂O₈2 ^- ][I ^- ]

For the reaction S₂O₈2 ^- (aq) + 3I ^- (aq) $\rightarrow$ 2SO₄2 ^- aq) + I₃-(aq) ,rate = k[S₂O₈2 ^- ][I ^- ].When the reaction is followed under pseudo-first-order conditions with [S₂O₈2 ^- ] = 200 m M and [ ^- ] = 1.5 m M,the rate constant was 1.82 s ^{- 1}.The second order rate constant,k,for the reaction is

A) 1.21 * 10³ M ^{- 1}.s ^{- 1}.
B) 6.07* 10³ M ^{- 1}.s ^{- 1}.
C) 9.10 M ^{- 1}.s ^{- 1}.
D) 1.37 *10^-2 M ^{- 1}.s ^{- 1}.
E) 1.82 M ^{- 1}.s ^{- 1}.