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【单选题】
已知f(x)=3-2|x|，g(x)=x 2 -2x，F(x)= g(x)，当f(x)≥g(x)时 f(x)，当f(x)＜g(x)时 ， 则F（x）的最值是（ ）A.
最大值为3，最小值-1
B.
最大值为 7-2 7 ，无最小值
C.
最大值为3，无最小值
D.
既无最大值为，也无最小值
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A.
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B.
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D.
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