I REALLY NEED HELP PLEASE PLEASE PLEASE Which part of the historian's argument is his claim?

A. In his opinion, it is morally wrong for any political movement to
use violence to achieve its goals.
B. He notes that, following the Revolution, a rash of violence swept
over France.
C. He refers to the execution of French royalty and the European
wars that revolutionaries launched following their victory to
support his argument.
D. Based on this information, he argues that the French Revolution
produced far more negative outcomes than positive ones.