Refer to the exhibit.The network shown in the diagram is experiencing connectivity problems. Which of the following will correct the problems？（）

• A、Configure the gateway on Host A as 10.1.1.1.
• B、Configure the gateway on Host B as 10.1.2.254.
• C、Configure the IP address of Host A as 10.1.2.2.
• D、Configure the IP address of Host B as 10.1.2.2.
• E、Configure the masks on both hosts to be 255.255.255.224.
• F、Configure the masks on both hosts to be 255.255.255.240.