Which path does traffic take from the R4 data center to the file server?

Refer to the exhibit.

R1 and R2 both advertise 10.50.1.0/24 to R3 and R4 as shown. R1 is the primary path. Which path
does traffic take from the R4 data center to the file server?

A.
All traffic travels from R4 to R2 to the file server.

B.
All traffic travels from R4 to R3 to R1 to the file server.

C.
Traffic is load-balanced from R4 to R2 and R3. Traffic that is directed to R3 then continues to R1 to
the file server. Traffic that is directed to R2 continues to the file server.

D.
All traffic travels from R4 to R2 to R1 to the file server.