What Are the [H⁺] and [OH^-] of a Solution Made

What are the [H⁺] and [OH^-] of a solution made by dissolving 0.0001 mole of HI in sufficient water to make 1.00 liter of solution?

A) [H⁺] = 4 M [OH^-] = 10 M
B) [H⁺] = 1 × 10^-14 M [OH^-] = 1 × 10^-4 M
C) [H⁺] = 1 × 10^-10 M [OH^-] = 1 × 10^-4 M
D) [H⁺] = 1 × 10^-4 M [OH^-] = 1 × 10^-14 M
E) [H⁺] = 1 × 10^-4 M [OH^-] = 1 × 10^-10 M