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.

[Q]: Category: LET'S FOOL AROUND! 
Clue: "A Fool in Love" was the first big hit for this couple known for their stormy marriage & their "Revue"
[A]: ike & tina turner


[Q]: Category: A LITTLE OF THE BUBBLY 
Clue: Roy Allen opened root beer stands in 1922 & introduced this brand name for his product
[A]: a&w


[Q]: Category: BOTANY 
Clue: From the Latin for "cap", the pileus is the circular cap on one of these fungi
[A]:
a mushroom