How Does Community Attribute of the BGP Route Set by Routing

How does community attribute of the BGP route set by routing policies affect route selection?

A) The Community attribute directly affects route selection because it must be compared during the route selection process.
B) The Community attribute does not affect route selection because it is non-transitive and cannot be transmitted between routers.
C) Routes are classified by the Community attribute which indirectly affects route selection.
D) Different route attributes such as the Local-Preference and MED values can be set for routes in different communities.