The correct answer is C) if the had to deal with any climate changes.
The artifacts discovered can tell you about this society if the had to deal with any climate changes.
If an archeologist discovered various minerals and shells in his diggings, these artifacts can tell you about this society that they had to deal with any climate changes.
Minerals and shells can tell an archeologist about the weather conditions in the time when this civilization lived. The artifacts can share information on the kind of soil, the temperature, any kind of climate change that affected agriculture, and the probable effect they had on that civilization.