Which is true about the effusion rates of helium and sulphur dioxide when the molar mass of helium is 4 grams/mole and the molar mass of sulphur dioxide is 64 grams? A) Sulphur dioxide effuses 4 times faster than helium. B) Sulphur dioxide effuses 0.25 times faster than helium. C) Helium effuses 0.25 times faster than sulphur dioxide. D) Helium effuses 4 times faster than sulphur dioxide. E) Molar mass is not related to effusion.