The community attribute of the route set through routing policy, does it affect route routing?

The community attribute of the route set through routing policy, does it affect route routing?
A . Indirectly, the route can be classified by setting the Community property of the route, and then different route routing related attributes such as Local_Pre, MED, etc. can be set according to the category, thereby affecting the purpose of route selection.
B . Can’t be affected because the Community attribute of the route is non-transitional and can’t be passed between routers.
C . Indirectly, the route can be classified by setting the community attribute of the route, and then different route selection related attributes can be set according to the categories. These attributes can only include Local_Pre and MED, thus affecting route selection.
D . After the router receives a route update with the community attribute No_Advertise, it will not be advertised outside the local A

Answer: A

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