单选题Why would you make a non-backbone area a stub or not-so-stubby area？（）Ato aggregate routes learned from the ABRBto lower the cost of routes advertised by the ABRCto connect a non-contiguous area to the backboneDto decrease the size of the link-state da
题目
单选题
Why would you make a non-backbone area a stub or not-so-stubby area？（）
A
to aggregate routes learned from the ABR
B
to lower the cost of routes advertised by the ABR
C
to connect a non-contiguous area to the backbone
D
to decrease the size of the link-state database in that area