5. Consider the page table shown in Figure 1 for a system with 12 bit virtual and physical addresses and with 256-bvte pages. The list of free page frames is D. E. F (that is, D is at the head of the list, E is second, and F is last) Page Page Frame 4 4 Figure 1 Convert the following virtual addresses to their equivalent physical addresses in hexadecimal. All numbers are given in hexadecimal. (A dash for a page frame indicates that the page is not in memory.) (2 points) a) 7EF b) 245 c) 912 d) 4AB