Which action allows CE1 to get the subnet 10.10.2.0/24 over the CE1-PE1 link,regardless of whether there is a flap in the MPLS link or backdoor link?

**Refer to the exhibit. A customer is running IS-IS within a network and is using BGP as a CE-PE routing protocol. Which action allows CE1 to get the subnet 10.10.2.0/24 over the CE1-PE1 link,regardless of whether there is a flap in the MPLS link or backdoor link?
Exhibit:

A. Configure the neighbor weight 33768 command on CE1 under the BGP process.
B. Configure the distance bgp 115 200 200 command on CE1 under the BGP process.
C. Configure the distance 30 ip command on CE1 under the IS-IS process.
D. Configure the distance bgp 115 200 200 command on CE2 under the BGP process.
E. Configure the neighbor weight 33768 command on CE2 under the BGP process