I make it a point not to discuss politics at family functions . It 's not worth the aggravation . However , I could n't let this one pass by when I overheard my uncle and my sister talking .
According to the above context, choose the best option to answer the following question.
Question: What may cause aggravation about politics at a family event ?
Options:
A. The same views may cause aggravation .
B. None of the above choices .
C. Differing views may cause aggravation .
D. The news may cause aggravation .


C