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.