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【单选题】
已知点P在抛物线y 2 =4x上，则点P到直线l 1 ：4x-3y+6=0的距离和到直线l 2 ：x=-1的距离之和的最小值为（　　）
A.
37 16
B.
11 5
C.
2
D.
3
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