Answer:
Correct answer is C. The loser of the war was to pay billions.
Explanation:
Only C is correct as it was a question of billions of mark. As a part of the treaty the reparation was to be established. Germany, country that was blamed for the beginning of war had to pay billions.
Sum in 1921 was about 226 billions of marks.
Most of that money was never paid, and economic crisis to deterioration of relations.