An attempt to analyze a crash dump using SDA produces the following error message: SDA-EDUMPEMPTY. Which event would cause this to occur?

A.
The dump was not copied during system startup.

B.
The dump was saved to PAGEFILESYS with SAVEDUMP=1.

C.
The dumpfile was over 300 blocks larger than physical memory.

D.
A normal shutdown was performed since the most recent crash.