What is true about type $2$ HOSTED HYPERVISOR

A$.$ The allocation of all hardware resources is directly controlled by the hypervisor

B$.$ Only main memory allocations and input$-$output operations go through the hypervisor, but the CPU physical processor time allocation is performed directly by the guest operating system without the involvement of the hypervisor

C$.$ All operations, including CPU operations, go through the host operating system.

D$.$ As part of handling a system call following the execution of an input$/$output operation by the user application in a guest operating system, an interrupt will occur to the host operating system