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.

Example Input: Category: FOOD 
Clue: A popular health food, this soybean curd is used to make a variety of dishes & an ice cream substitute
Example Output: tofu

Example Input: Category: DIRECTORS 
Clue: Biographer Donald Spoto says that as a schoolboy, this "Vertigo" director was nicknamed "Cocky"
Example Output: alfred hitchcock

Example Input: Category: CHEMISTRY 
Clue: A chemical in its Scotchgards persisted in the environment, so this company pulled the products
Example Output:
3m