Refer to the exhibit.A new subnet with 60 hosts has been added to the network.Which subnet addressshould this network use to provide enough usable addresses while wasting the fewest addresses？（） 
- A、192.168.1.56/27
- B、192.168.1.64/26
- C、192.168.1.64/27
- D、192.168.1.56/26
正确答案:B
答案解析:有
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