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

A: telegraph
****
Q: Category: GLAND FINALE 
Clue: This human gland important in the immune system takes its name in part from its resemblance to an herb

A: the thymus gland
****
Q: Category: THE CHIEFS 
Clue: He wrote 5 of the 85 "Federalist" essays

A:
john jay
****