What action resolves the issues on R3 and R4 routers?

Refer to the exhibit.

The USER mat is connecting an application on an Internet connection in AS 100 is facing these issues:

✑ The USER lost the connection to the application during a failure Between IG and R2.

✑ Router R2 configuration a lost due to a power outage.

✑ The application the USER is connecting to a hosted behind CE2.

What action resolves the issues on R3 and R4 routers?
A . Set R4 as a route reflector for R3 and CE2
B . Apply high Local Preference on R3 toward R1
C . Set R3 as a route reflector for R4 and CE1
D . Apply low Local Preference on R4 toward R2.

Answer: D