Question

the main reason the german government signed the treaty of versailles was that they thought the treaty was the only way to secure world peace. they could not afford to pay the high fines imposed by not signing. they believed that signing would keep them from paying restitution. they feared the threat of an attack by the allied forces.

Explanation:

After World War I, Germany was in a weakened state. The Allied forces had the upper - hand. If Germany did not sign the Treaty of Versailles, the Allied forces could launch a further attack. The first option is incorrect as Germany was more concerned with its own situation rather than world peace. The second option is wrong because the fines were part of the treaty (not for not signing). The third option is incorrect since signing the treaty meant paying restitution. The fourth option makes sense as Germany, being defeated, feared the Allied forces' attack if it refused to sign.

Answer:

they feared the threat of an attack by the Allied forces.