Which one of the following best describes how VLANs improve network performance?

Which one of the following best describes how VLANs improve network performance?
A . VLANs separate a large broadcast domain into smaller broadcast domains.
B . VLANs enable rate limiting of the broadcast traffic.
C . VLANs create one large virtual switch out of many physical switches.
D . VLANs place each switch port into its own collision domain.

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Answer: A