Answer :
The excerpt that would be described as incendiary is A. [Germany] has lost politically by exposing herself in the eyes of the entire world as a bloodthirsty aggressor.
What is meant by an incendiary text?
An incendiary text is one that is used to provoke an entity into getting into conflict with the entity who said the words in the text.
Joseph Stalin used this text to show that the Soviet Union was now in conflict with Germany for being a bloodthirsty aggressor.
In conclusion, option A is correct.
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