Question: What does the following code do? public static int mystery(int a, int b) { } if (b == 1) return a; return a +

What does the following code do? public static int mystery(int a, int b) { } if (b == 1) return a; return a + mystery(a, --b); Returns the product of a and b. Returns the sum of all the integers from a to b, inclusive. Returns the sum of a and b. Returns the sum of a and all the integers from 0 to b, inclusive.

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