Which of the following statements is true regarding XenStore?

A.
It is a web interface used to provide self-service domain provisioning to users with sufficient privileges.

B.
It saves the persistent configuration of all defined Xen domains and restores them when the host system is started.

C.
It manages disk file images on behalf of all virtual machines and provides them as virtual devices to guest domains.

D.
It stores run time information regarding Xen and its domains using hierarchical namespaces shared between domains.

E.
It is a software repository located within the host system used to provide software packages to the guest domains.