Which Statement Based on the Mole Concept Is Not Correct

Which statement based on the mole concept is not correct?

A) The molar mass of a diatomic element is its atomic weight times two.
B) The number of atoms in one mole of platinum is the same as the number of atoms in one mole of uranium.
C) One mole of sodium chloride,NaCl,contains the same number of ions as one mole of calcium sulfate,CaSO₄.
D) One mole of methane,CH₄,contains the same number of atoms as one mole of carbon dioxide,CO₂.
E) One mole of bromine,Br₂,contains the same number of molecules as one mole of propane,C₃H₈.