Which of these provisions of the treaty of versailles was the most crucial to what president woodrow wilson sought in the hope that world war i would be a "war to end all wars"?

then its a law the end

seeing as no choices were provided, i'll do my best to answer it from knowledge.

job specialization promotes work ethic to the person doing the job. he/she may be strong in the arms and able to lift things, specializing him/her in a job where you lift and carry.