Which of the following actions will enable 64-bit applications on a system with  32-bit kernel()
A、Use "smit load64bit" to enable the 64-bit applications.
B、Re-install all applications with 64-bit versions.
C、Re-install the OS with 64-bit kernel enabled.
D、Change the kernel to 64bit, reboot, and then use the following command: chdev -l sys0 -a "applications=64_bit"