Which of the following statements about IToIP is incorrect?  

Which of the following statements about IToIP is incorrect?  
A . IToIP closely connects applications and infrastructure, greatly improving the operating efficiency of IT systems.
B . IToIP requires that IT systems be built using IP networks as infrastructure.
C . Various IT resources can easily share and use standard IP infrastructure to achieve further integration of various technologies and applications such as communication, computing, storage, and networking.
D . The IT system built on ITolP can create a standard, compatible, secure, intelligent and manageable IT application environment for users.

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Answer: A