Which two statements are correct about Send Logging? Choose 2 answers

Which two statements are correct about Send Logging? Choose 2 answers
A . Send Log data extensions are archived automatically based on retention settings.
B . AMPscript can be used to pull data from Send Logs for use within emails.
C . A business unit can support up to three Send Logs.
D . SQL Query Activities can reference Send Logs in combination with system data views.

Answer: B,D