A system administrator is doing an AIX 5L New and Complete Overwrite installation on a system with a 64-bit processor using the default settings. Which of the following will be the resulting installed environment？（）

• A、Only the 32-bit kernel will be installed and enabled
• B、Only the 64-bit kernel will be installed and enabled
• C、Both the 32-bit and 64-bit kernel will be installed and the 32-bit kernel will be enabled
• D、Both the 32-bit and 64-bit kernel will be installed and the 64-bit kernel will be enabled