You will be given a trivia clue, and the category it belongs to. You should answer with the best answer that belongs in the category and is described by the clue. For simplicity, answers should be in all lower cased letters.

[EX Q]: Category: U.S. GOVERNMENT 
Clue: This group that first met in 1942 didn't get a permanent chairman until 1949
[EX A]: the joint chiefs of staff

[EX Q]: Category: U.S. HISTORY 
Clue: He was the commanding Union general at Bentonville, site of the last major Confederate offensive
[EX A]: william tecumseh sherman

[EX Q]: Category: THE NFL 
Clue: This team that joined the NFL in the mid-1970s is the only one whose name starts with the same 3 letters as its city's name
[EX A]:
the seattle seahawks