请教，在线等！

sierrapan

More than fifty years after the Second World War, a number of African American soldiers were awarded―some of them posthumously―with the Congressional Medal of Honor, which was the nation's highest military award, and which was long overdue in recognition of their outstanding bravery.  
 with the Congressional Medal of Honor, which was the nation's highest military award, and which was long overdue in  
 
 with the Congressional Medal of Honor, the nation's highest military award for long-overdue  
 
 the Congressional Medal of Honor, which was the nation's highest military award, long-overdue in  
 
 the Congressional Medal of Honor, the nation's highest military award for long-overdue  
 
 the Congressional Medal of Honor, the nation's highest military award, in long-overdue

DE怎么比？答案选E

sierrapan

急～～～～～～～～～

sayysong

the nation's highest military award做the Congressional Medal of Honor的同位语。
如果E的in long-overdue...前面用逗号隔开的话，割裂了与the nation's highest military award的关系。
使得the nation's highest military award在形式上更像一个插入语，而给人误解in long-overdue是修饰the Congressional Medal of Honor的了。

sierrapan

谢谢~！