Which of following is not true for virtual memory? a)In page table of virtual memory, if valid-invalid bit is invalid, then whether the page is in secondary storage or page is not in logical address...

Which of following is not true for virtual memory?

a)In page table of virtual memory, if valid-invalid bit is invalid, then whether the page is in secondary storage or page is not in logical address space of that process

b)A page fault occurs when a virtual adress that is referenced is not already loaded into physical address

c)A program must be loaded to physical memory (RAM) completely for it to be executed

d)Virtual memory makes it possible to execute programs that are larger than physical memory(RAM).