单选题To provide efficient roaming between the cells， which percent of cell overlap is recommended for2.4 GHz and 5 GHz access points？（）A5 to 10 percent for both 2.4 GHz and 5 GHzB10 percent for both 2.4 GHz and 5 GHzC20 percent for 2.4 GHz and 15 to 20 percent for 5 GHzD20 percent for 2.5 GHz and 10 percent for 5 GHz
单选题
To provide efficient roaming between the cells， which percent of cell overlap is recommended for2.4 GHz and 5 GHz access points？（）
A
5 to 10 percent for both 2.4 GHz and 5 GHz
B
10 percent for both 2.4 GHz and 5 GHz
C
20 percent for 2.4 GHz and 15 to 20 percent for 5 GHz
D
20 percent for 2.5 GHz and 10 percent for 5 GHz
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