【单项选择题】
Refer to the exhibit.HostA cannot ping HostB.Assuming routing is properly configured，what could be thecause of this problem？（）<br /> <img src="https://img.ppkao.com/2018-07/yiyu/2018072315055477964.jpg" /><p> Refer to the exhibit.HostA cannot ping HostB.Assuming routing is properly configured，what could be thecause of this problem？（）<br /> <img src="https://img.ppkao.com/2018-07/yiyu/2018072315055477964.jpg" /></p>
A、A.HostA is not on the same subnet as its default gateway
B、B.The address of SwitchA is a subnet address
C、C.The Fa0/0 interface on RouterA is on a subnet that cannot be used
D、D.The serial interfaces of the routers are not on the same subnet
E、E.The Fa0/0 interface on RouterB is using a broadcast address
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