(单选题)11: 对下面的个人所得税程序中满足语句覆盖测试用例的是（ ）
If(income < 800) taxrate = 0;
else if(income <= 1500) taxrate = 0.05;
else if(income < 2000) taxrate = 0.08;
else taxrate = 0.1;
A: income = (800,1500,2000,2001
B: "income = (800,801,1999,2000)"
C: "income = (799,1499,2000,2001)"
D: "income = (799,1500,1999,2000)"
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