Which of the following statement about dedicated computing is wrong?

Which of the following statement about dedicated computing is wrong?
A .  Dedicated computing platforms mainly refer to mainframes and minicomputers
B .  Dedicated computing platforms often use RISC architecture
C . Dedicated computing platform is expensive and has few applications. Only a few enterprises and a few applications can use computers.
D .  Huawei’s KunLun minicomputer is a closed computing architecture

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Answer: B