50 grams of nickel are melted together with 50 grams of copper, thereby forming 100 grams of a Ni-Cu alloy. In that alloy
a) the number of atoms of nickel is equal to those of copper.
b) the number of atoms of nickel is greater than those of copper.
c) the number of atoms of copper is greater than those of nickel.
d) None of the above.