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單項選擇題

A network de sign shows area 1 with three internal routers, area 0 with four internal routers, and area 2 with five internal routers. Additionally, one ABR (ABR1) connects areas 0 and 1, plus a different ABR (ABR2) connects areas 0 and 2.
How many Type 1 LSAs would b e listed in ABR2's LSDB?()

A. 6
B. 7
C. 15
D. 12
E. None of the other answers is correct.

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