What causes of World War 1 can be found in this speech?

I don't really know what speech you're talking about but ww1 started when Ferdinand and his wife were assassinated by Gavrilo Princip. This led to Austria-Hungary getting mad at Serbia because they thought they had something to do with it. So Austria-Hungary sent impossible demands to Serbia and when they refused, they declared war. Germany was afraid that Great Britain, Russia, and France were gonna get involved so they declared war on the allies.

Explanation:

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.