Answer:
C. guest integration services
Step-by-step explanation:
Guest integration services are the modules that are used to enhance the integration between host operating system Hyper-V guest operating system. In some cases, Hyper-V operating system and host operating didn't synchronize and hard does not support to the guest operating system. These issues are due to compatibility of hardware and guest operating system.
To resolve the issue, modules of integration services are available to make compatible hardware with guest operating system.