In a Two-Component Alloy the More Abundant Metal Can Be

In a two-component alloy the more abundant metal can be thought of as the solvent while the less abundant metal can be thought of as the solute. Which of the following would not change the orientation of atoms in the solvent's unit cell?
(I) a solute with the same atomic radius as the solvent
(II) a solute that was sufficiently small to fit into holes in the solvent's unit cell
(III) a solvent that was sufficiently small to fit into holes in the solute's unit cell

A) only I
B) only II
C) only III
D) I or II
E) I, II, or III