Which statement is true about enabling IS-IS routing and using the net command to configure the NSAP address?

Which statement is true about enabling IS-IS routing and using the net command to configure the NSAP address?
A . NSAP addresses have a fixed size of 20 bytes.
B . The NSEL must always be 00 to identify the router.
C . The area address follows the system ID field before the NSEL field.
D . An AFI of 39 indicates that the AFI is a locally administered private address.

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Answer: B