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: SPORTS SCORES 
Clue: In volleyball, only the side who did this at the beginning of play can score a point

SOLUTION: serve

PROBLEM: Category: UNITS OF MEASURE 
Clue: The scale on the bottom of a sextant is in these units

SOLUTION: degrees

PROBLEM: Category: McNAMES 
Clue: In the '80s this California preschool was involved in what was then the USA's longest, costliest criminal trial

SOLUTION:
mcmartin