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 consistency, answers should be in all lower cased letters.
PROBLEM: Category: ABBR. 
Clue: Computer users should know that BBS stands for this

SOLUTION: bulletin board system

PROBLEM: Category: MAN "D" 
Clue: As a runaway slave, Frederick Augustus Washington Bailey changed his name to this to avoid capture

SOLUTION: douglass

PROBLEM: Category: IN THE COOKIE JAR 
Clue: These sun-dried grapes can be found in oatmeal cookies

SOLUTION:
raisins