4. (15 pts) True or False: Explain briefly. a. Virtual addresses must be the same size as physical addresses. b. In a given system, page offsets in virtual addresses must be the same size as page offsets in physical addresses. Implementing processor affinity in a multiprocessor scheduler is likely to reduce the number of misses in caches such as translation lookaside buffers c. d. If the page size is doubled, the amount of internal fragmentation will increase e. If the page size is doubled, the size of the working set for a process will decrease