The routing table of the Corp router

Question :The routing table of the Corp router is displayed below:
The Corp router receives an IP packet with a source IP address of 192.168.214.20
and a destination address of 192.168.22.3. Based on the information above, what will
the router do with this packet?
A. It will encapsulate the packet as Frame Relay and forward it out interface Serial
0/0.117.
B. It will discard the packet and send an ICMP Destination Unreachable message out
interface FastEthernet 0/0.
C. It will forward the packet out interface Serial 0/1 and send an ICMP Echo Reply
message out interface serial 0/0.102.
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D. It will change the IP packet to an ARP frame and forward it out FastEthernet 0/0.
E. It will forward the packet out the default route.
F. None of the above

Answer :B
Explanation:
The destination IP address of 192.168.22.3 is not in the routing table of the Corp router.
Since there is no default route set, as shown by the "gateway of last resort is not set"
statement, the packet will be dropped by the router and an ICMP Destination Unreachable
message will be sent back to the source, which is Fast Ethernet 0/0 in this case.