Assuming that sodium is naturally found primarily as a fine material rather than either

A. In the deforested area, less sodium was lost during Year 2 than during Year 3.
B. In the deforested area, less sodium was lost during Year 1 than during Year 2.
C. In the undisturbed area, about the same amount of sodium was lost during all three years.
D. In the undisturbed area, less sodium was lost during Year 2 than during Year 3.