(Topic 1) In IS-IS, which of the following statements regarding an L1/L2 router is false?

(Topic 1) In IS-IS, which of the following statements regarding an L1/L2 router is false?
A . An L1/L2 router can have neighbors in different areas.
B . An L1/L2 router calculates separate SPF trees for the Level 1 and Level 2 topology.
C . An L1/L2 router advertises its L2 routes to its L1 neighbors.
D . An L1/L2 router sets the ATT bit in L1 LSPs to identify itself as an L1 router.

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Answer: D