How many routing tables reside on a P-router?

A.
The P-router has a single global routing table.

B.
A P-router has one routing table for each VRF.

C.
A P-router has a global routing table for each VRF.

D.
A P-router has a global routing table and one additional routing table for each VRF.

Explanation:

A, obviously. since it is a P router but not a PE router. It isused to transfer the route to other PE routers as part of the path.It does not"inject" the routes to any of their routing tables. Since it is just partof a path, it needs ONLY a global routing table to inter-connect PE devices.
Not D: Option D is true for PE-router.