The symbol $$\Delta$$ denotes one of the four arithmetic operations: subtraction, multiplication, or division. If 6 $$\Delta$$ 3 $$\le$$ 3, which of the following must be true?
I. 2 $$\Delta$$ 2=0
II. 2 $$\Delta$$ 2=1
III. 4 $$\Delta$$ 2=2
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