In Huawei Cloud Stack, which one of the following descriptions of the interfaces of the ManageOne operation and maintenance center acquisition and control layer is wrong?

In Huawei Cloud Stack, which one of the following descriptions of the interfaces of the ManageOne operation and maintenance center acquisition and control layer is wrong?
A . Virtual machine in-band (os) performance indicators and call chain logs are collected and reported through the agent deployed on the host and management V.
B . Hardware monitoring indicators, obtain performance data files through the SFTP protocol channel provided by eSight
C . Cloud service tenant instance indicators. The cloud service reports tenant instance performance indicators to ManageOne through the RESTfu1 interface.
D . Virtual machine out-of-band performance indicators (OS operation agent needs to be installed), OpenStack’s Ceilometer collects relevant indicators through virtualization (VRM), and then reports them to ManageOne

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Answer: B