Which one of the following descriptions of DRS is correct?

Which one of the following descriptions of DRS is correct?
A . In order to achieve the best resource scheduling effect, it is recommended that the CPU, memory, network, and storage configurations of the hosts in the cluster are as the same as possible, so that the virtual machine can be migrated to any host in the cluster
B . It is recommended to set the time-sharing value of resource scheduling to a conservative strategy when the business pressure is high, and set to a medium or advanced strategy when the business pressure is small.
C . The advanced rules of resource scheduling can be used to meet some special needs. For example, when two virtual machines are in the active/standby relationship, it can be configured as an aggregation strategy to improve data interaction performance between virtual machines.
D . Resource fullness can be configured with different measurement factors. If memory reuse is used, it is recommended to configure it according to CPU scheduling.

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Answer: B