28. In the protected mode, the logical address consists of a. 16-bit segment selector and 16-bit offset b. 16-bit segment selector and 32-bit offset c, 32-bit segment selector and 32-bit offset d. 32-bit segment selector and 16-bit offset 29. When the CPU tries to execute part of a program that has been swapped out to disk, it executes a a. descriptor table load b. general protection fault c. page fault d. page translation