How did the actions of the archduke led to Franz Ferdinands assinations?

The Archduke was an advocate of a plan to try avoid the loss of Austria-Hungary's southern slavic provinces by recognizing them as a united province equal to Hungary. The Serbs who wanted to add southern Austria to Serbia therefore wanted to kill him.

I'll tell you what, darling. If you rewrite this in a language that Earthlings can understand I'll give YOU ten points.