When is historical data of resource usage important? (Select THREE correct answers.)

When is historical data of resource usage important? (Select THREE correct answers.)
A . Predicting when resources will need to be increased.
B . Selecting a computer vendor.
C . Identifying processes killed during out of memory occurrences.
D . Diagnosing capacity problems.
E . Troubleshooting a software problem.

Answer: A, D, E