In a compute-based storage area network (SAN), what is a function of the metadata manager?

A. Holds cluster-wide mapping information and load balancing in a compute-based SAN.

B. Performs the I/O operations on the local storage of a compute system as requested by a client.
C. Provides an interface to the software-defined storage controller.
D. Controls all data read and write operations in a compute-based SAN.