Respuesta :
The reason why the incident that was described in the passage happened was due to c. Serbian nationalism.
What happened in the passage?
The passage described the assassination of the heir to the throne of Austria-Hungary by a Bosnian Serb, Gavrilo Princip.
The reason this happened was because of Serbian nationalism as the Bosnian Serbs wanted independence for Serbians in Bosnia.
In conclusion, option C is correct.
Find out more on Gavrilo Princip at https://brainly.com/question/3699207.