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. STAMPS 
Clue: FDR's in 1982 was the last stamp to show 1 of these; they were removed from photos of Jackson Pollock & Edward R. Murrow
[EX A]: cigarette

[EX Q]: Category: AROUND THE WORLD 
Clue: Besides Great Britain, the 2 European countries through which the Greenwich Meridian passes
[EX A]: france & spain

[EX Q]: Category: PRESIDENTIAL NOMINEES 
Clue: He wrote a "Report of the Exploring Expedition to the Rocky Mountains in the Year 1842"
[EX A]:
john c. fremont