The French Sent Troops to Occupy Germany's Ruhr Valley

The French sent troops to occupy Germany's Ruhr Valley

A) when Germany rebelled and refused to make any reparations payments.
B) in order to prove to the Germans that any resistance on their part would not be tolerated.
C) in 1919, after France realized that German Reich marks were fast losing their value, making reparations worthless.
D) after Germany requested a pause in reparations payments in 1923.
E) after their attempted negotiations with the Germans over reparations payments broke down in 1922.