In the image, there are two nodes communicating via two access points that are bridging together two segments. In the middle packet, under the left access point, the Address 4: field is blank. If this packet is destined for the computer on the right side of the image, what must be the value of Address field 4 in this middle packet?
A.
ABCD
B.
6789
C.
2345
D.
1234
E.
CDEF