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.

[Q]: Category: AMERICAN CITIES 
Clue: 6 of the top 10 U.S. cities in population are found in these 2 states
[A]: california & texas


[Q]: Category: FINANCE HISTORY 
Clue: In the 19th c., selling stock you didn't yet own, hoping it would fall, was called selling this animal's skin
[A]: a bear


[Q]: Category: POPULAR SYMBOLS 
Clue: Starting in the 1860s, this cartoonist gave us the modern image of Santa Claus
[A]:
thomas nast