An equilibrium is established in which both the forward (fwd) and the reverse (rev) reactions are elementary. If the equilibrium constant Ke = 1.6 x 10⁻² and the rate constant k = 8.0 x 10⁻⁷s⁻¹ what is the value of kᵣₑᵥ?
A) 1.3 x 10⁻⁸s⁻¹
B) 7.8 x 10⁷s⁻¹
C) 2 x 10⁴s⁻¹
D) 5.0 x 10⁻⁵s⁻¹
E) None of these choices are correct.