Refer to the exhibit.

Which statement is correct?

A.
Router CE1 is waiting for the query for the prefix 55.55.55.55/32 to be acknowledged.

B.
Router CE1 is waiting for the reply for the prefix 55.55.55.55/32 to be received.

C.
Router CE1 still has to send out a query for the prefix 55.55.55.55/32.

D.
Router CE1 has sent out a reply that has not been acknowledged yet.

Explanation:
If you see the remaining replies, you will know that CE1 is waiting for the reply from
55.55.55.55/32.