Political Cultural Developments -Metternich Enacted the Carlsbad Decrees in 1819 for Which of for Which

Political Cultural Developments
-Metternich enacted the Carlsbad Decrees in 1819 for which of the following reasons?

A) To warn France that any aggression would not be tolerated
B) To improve Austrian relations with Turkey
C) To limit growing German nationalism
D) To challenge Alexander I's interests in Poland
E) To reorganize the tax structure of Austria