In a Token Ring data frame, why are the A and C bits copied in the frame status field?

O a. No such fields in Token Ring data frame O b. A=C=1 for all frames.

O c. The A and C bits are not copied—they represent different fields.

O d. These fields cannot hold an A or C bit

O e. The A and C bits are copied to ensure integrity, because the FCS field does not include them.

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