One can run MSDOS on a Mac OS X using.... an emulator direct execution from a shell prompt the NET runtime for MAX OS a virtual machine What statements about system calls are true? a process can never be suspended in the middle of a system call because that would leave the CPU stuck forever in kernel mode system calls offer access to OS services for user processes system calls are invoked from C/C++ using function libraries system calls always involve a transition from user to kernel mode system call parameters cannot be passed in registers because of their reduced capacity