The following set of data was obtained by the method of initial rates for the reaction: S2O8^2- (aq) + 3 I- (aq) ==> 2 SO4^2- (aq) + I3- (aq) What is the initial rate when S2O8^2- is 0.15M and I- is 0.15M? [S2O8^2-] (M) [I-] (M) Initial Rat (M s^-1) Expt 1: 0.25 0.10 9.00 x 10^-3 Expt 2: 0.10 0.10 3.60 x 10^-3 Expt 3: 0.20 0.30 2.16 x 10^-2 A) 4.10 x 10^-6 M s^-1 B) 8.10 x 10^-3 M s^-1 C) 1.22 x 10^-2 M s^-1 D) 5.40 x 10^-2 M s^-1