Which of the following statements is TRUE regarding the development of the OSI Reference Model?

Which of the following statements is TRUE regarding the development of the OSI Reference Model?
A . OSI was developed as an alternative, open standard to IBMs SNA model.
B . OSI protocols were no longer used after TCP/IP was developed.
C . OSI model is much simpler than TCP/I
E . OSI model is maintained exclusively by the IET

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Answer: A