Detailed Instructions: In this task, you will be presented with a passage and have to answer a question based on your understanding of the events inferred from the passage. Among the entities, try to find the best entity that is most likely to fill in "_" and classify the answers based on options.
Q: (CNN) President Donald Trump fired Reince Priebus as his chief of staff on Friday, a move that completes a purge of Washington insiders from Trump's inner circle and virtually ensures an even harder turn into his outsider rhetoric and approach. The news, as with so much from Trump, came via Twitter just before 5 pm on the East Coast. "I am pleased to inform you that I have just named General/Secretary John F Kelly as White House Chief of Staff," Trump tweeted. "He is a Great American and a Great Leader. John has also done a spectacular job at Homeland Security. He has been a true star of my Administration."The President's move completes a purge of Washington insidersTrump's attempts to merge his New York world with Washington failed 
 Questions:And, everywhere you looked were signs that _' days were numbered -- a man without allies faced with a President with an itchy firing finger. (A) CNN (B) Donald Trump (C) Reince Priebus (D) Washington (E) Trump (F) Twitter (G) East Coast (H) John F Kelly (I) White House (J) Great American (K) John (L) Homeland Security (M) Administration (N) New York
A:
(C)