You are given the following information about a paged virtual memory system with 2 level page tables: The CPU uses byte addressing with 32 bit addresses. Pages are 4KB. There are 2K entries in each low-level page table. All page table entries are 4B. A process is using 12MB of memory for program and data in low memory and 1MB for stack in high memory. (2+2+2) a. How large are top-level page tables? b. How large are low-level page tables? c. What is the total page table size for the process? 4