Refer to the exhibit. HostA cannot ping HostB. Assuming routing is properly configured, what could be the cause of this problem?
A.
HostA is not on the same subnet as its default gateway
B.
The address of SwitchA is a subnet address
C.
The Fa0/0 interface on RouterA is on a subnet that cannot be used
D.
The serial interfaces of the routers are not on the same subnet
E.
The Fa0/0 interface on RouterB is using a broadcast address
Can someone explain the answer to this question please! Detailed explanation plz!! how do we find out that they are not on the same subnet when they are both having (/27) subnet mask and also the 1st 3 values in the IP address are same 9192.168.1)??