TASK DEFINITION: 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.
PROBLEM: Category: PHONING IT IN 
Clue: Reflecting the company's activities at its founding in 1885, it was the second "T" in AT&T

SOLUTION: telegraph

PROBLEM: Category: STATE CAPITAL FUN FESTS 
Clue: On Labor Day weekend, this capital invites you to step back in time & relive the Gold Rush days

SOLUTION: sacramento

PROBLEM: Category: MATH 
Clue: A figure is defined as this if it can be divided into 2 parts that are mirror images of each other

SOLUTION:
symmetrical