求助prep 的一道题！ 关于修饰语和逻辑语义 感谢！

玻利维亚的冬天

It was only after Katharine Graham became publisher of The Washington Post in 1963 that it moved into the first rank of American newspapers, and it was under her command that the paper won high praise for its unrelenting reporting of the Watergate scandal.

• A
  
  It was only after Katharine Graham became publisher of The Washington Post in 1963 that it moved into the first rank of American newspapers, and it was under her command that the paper won high praise
  
  
  
• B
  
  It was only after Katharine Graham's becoming publisher of The Washington Post in 1963 that it moved into the first rank of American newspapers, and under her command it had won high praise
  
  
  
• C
  
  Katharine Graham became publisher of The Washington Post in 1963, and only after that did it move into the first rank of American newspapers, having won high praise under her command
  
  
  
• D
  
  Moving into the first rank of American newspapers only after Katharine Graham became its publisher in 1963, The Washington Post, winning high praise under her command
  
  
  
• E
  
  Moving into the first rank of American newspapers only after Katharine Graham's becoming its publisher in 1963, The Washington Post won high praise under her command
  
  
  请教各位大神，E 选项中的 KG's becoming 是绝对错误嘛？ 另外一些小伙伴说这句语义重心和修饰语不对，没有太理解，可不可以帮忙讲解一下呀