When the air interface frame is a data frame, the DS value needs to be compared. When the values of To DS and From DS are respectively, the device type is AP?

When the air interface frame is a data frame, the DS value needs to be compared. When the values of To DS and From DS are respectively, the device type is AP?
A . 0, 0
B . 0, 1
C . 1, 0
D . 1, 0

Answer: B

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