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.
Problem:(CNN) Senate intelligence committee Chairman Richard Burr shut down a line of questioning from California Sen. Kamala Harris at Wednesday's high-profile hearing, admonishing her and other Democrats to stop cutting off witnesses. The move rankled some on Twitter who argued the North Carolina Republican was singling out Harris, one of three women on the intelligence panel, during Wednesday's contentious hearing. Harris was pressing Deputy Attorney General Rod Rosenstein over whether he would sign a letter to give Special Counsel Robert Mueller full independence from the Justice Department in his probe, which would have the same effect as a letter issued for then-Special Counsel Patrick Fitzgerald in the investigation into the 2003 leaking of then-covert CIA officer Valerie Plame's identity.Sen. Kamala Harris grilled deputy Attorney General Rod Rosenstein at a hearing WednesdayThe exchange prompted Republican senators to stop interrupting 
 Questions:"Mr. Chairman, respectfully, I would point out that this witness has joked, as we all have, his ability to filibuster," _ argued, before Burr stopped her again. (A) CNN (B) Senate (C) Richard Burr (D) California (E) Kamala Harris (F) Democrats (G) Twitter (H) North Carolina (I) Republican (J) Rod Rosenstein (K) Robert Mueller (L) Justice Department (M) Patrick Fitzgerald (N) CIA (O) Valerie Plame
Solution:
(E)