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) Whatever else that can be said about Chuck Berry's "Maybellene" when it shot out of America's radios like a Redstone rocket in the bright late summer of 1955, one hard, true thing remains clear after those 62 years: Nothing like it ever existed before. Here's why: There was no category that could safely contain it. It charted No. 1 on the rhythm and blues charts, which was where most black recording artists such as Berry could be found. But its beat and its sensibility were just as deeply rooted in the predominantly white traditions of country blues and western swing.Gene Seymour: Chuck Berry's influence can be heard in every guitarist who came afterBerry remained an American original to the very end, Seymour writes 
 Questions:I'm betting he did more than that because _ in person was, well into senior citizenship, as compelling and galvanic as Berry on record. (A) Chuck Berry (B) Maybellene (C) America (D) Redstone (E) Gene Seymour (F) American (G) Seymour
A:
(A)