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: SPORTS BOOKS 
Clue: In 1998 the author of this controversial 1970 book was finally invited to play in a Yankees old-timers' game

A: \"ball four\"
****
Q: Category: SPORTS 
Clue: Among its 13 founding members in 1950 were Louise Suggs, Patty Berg & Babe Zaharias

A: the lpga
****
Q: Category: BOOKS INSPIRED BY HISTORY 
Clue: "Follow the Drinking Gourd" tells how slaves escaped to freedom guided by a song about this star group

A:
the big dipper
****