Briefing Amazon Knowledge

which naming scheme would give optimal performance on S3?

If an application is storing hourly log files from thousands of instances from a high traffic web site, which naming scheme
would give optimal performance on S3?

A.
Sequential

B.
instanceID_log-HH-DD-MM-YYYY

C.
instanceID_log-YYYY-MM-DD-HH

D.
HH-DD-MM-YYYY-log_instanceID

E.
YYYY-MM-DD-HH-log_instanceID