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: THE TOWER
Clue: Lightning not only strikes the same place twice, it strikes this 110-story Chicago tower hundreds of times a year
[EX A]: sears tower

[EX Q]: Category: ADD A LETTER
Clue: Confer if you wish, but if you add a letter to "confer", it becomes this type of evergreen
[EX A]: conifer

[EX Q]: Category: THE INTERNATIONAL SPACE STATION
Clue: (Cheryl of the Clue Crew reports from the Johnson Space Center in Houston.) An orbital facility is being built for the ISS that bears the name of this man born in Genoa in 1451
[EX A]:
christopher columbus