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.
Input: Tokyo (CNN) Japan's much-loved Emperor Akihito will stand down on April 30, 2019, becoming the first Japanese monarch to abdicate his post in two centuries. The decision was made at a meeting of the Imperial House Council and announced by Japanese Prime Minister Shinzo Abe on Friday. Crown Prince Naruhito, who has already assumed some of his father's duties, will take on the role on May 1, 2019, becoming the 126th Emperor to ascend to Japan's Chrysanthemum Throne. "I will do my upmost to ensure that the Emperor's abdication and the ascension of the Crown Prince will proceed smoothly with the blessing of all of our citizens," Abe said.Akihito hinted at his wish to retire in a rare public speech delivered in 2016The emperor will be succeed by his son, Naruhito, on May 1, 2019 
 Questions:"He became emperor when _ was looking for a new national identity and I think his commitment to peace became symbolic of how Japan tried to be perceived in the world. (A) Tokyo (B) CNN (C) Japan (D) Akihito (E) Imperial House Council (F) Shinzo Abe (G) Prince Naruhito (H) Chrysanthemum Throne (I) Emperor (J) Prince (K) Abe (L) Naruhito
Output:
(C)