Refer to the exhibit. 
The SP network is configuring Remotely Triggered Black Hole Filtering to protect hosts on network
152.68.19.0/24. Which routers should be configured to the sinkhole router?
A.
A, B, G, and H
B.
C and D
C.
L and K
D.
A, D, F, G, and L
E.
A, B, F, G, and H