what will the source physical address be in the frame when it reaches host B?

Refer to the exhibit.

If host A sends an IP packet to host B, what will the source physical address be in the frame when
it reaches host B?

A.
10.168.10.99

B.
10.168.11.88

C.
A1:A1:A1:A1:A1:A1

D.
B2:B2:B2:B2:B2:B2

E.
C3:C3:C3:C3:C3:C3

F.
D4:D4:D4:D4:D4:D4

Explanation:
When packets transfer from one host to another across a routed segment, the source IP address
always remains the same source IP address, and the source physical (MAC) address will be the
existing router’s interface address. Similarly, the destination IP address always remains the same
and the destination physical (MAC) address is the destination router’s interface address.