Which of the following statements about stack splitting is incorrect?

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• AAfter the two switches in two stack systems, after the stack is split, the stack system where the original master switch is located updates the topology, reassigns the primary switch, and the original standby switch is promoted to the primary switch in the new stack system, and a new standby switch is elected at the same time.
• BAfter the stack is split, the MAC addresses of the two stack systems will change immediately.
• CMultiple physical ports need to be set to a single logical port between member switches to avoid causing network failures, the stack will perform MAD detection. The party that fails the MAD detection competition will close all physical ports except reserved ports.
• DIf the master and standby switches are still in the same stack system after the stack splits, the slave switch separated from the original master and slave switches will re-elect the master and slave switch due to protocol packet timeout.

• A
  6% (4)
• B
  71% (45)
• C
  5% (3)
• D
  17% (11)

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