-acv option, what will be the default "delete option"?

[Daniel.Li]

Dear List,

If I use -acv for rsync options, what will I choose as default "delete
option"?

--delete                delete extraneous files from destination dirs
--delete-before         receiver deletes before transfer, not during
--delete-during         receiver deletes during transfer (default)
--delete-delay          find deletions during, delete after
--delete-after          receiver deletes after transfer, not during
--delete-excluded       also delete excluded files from destination dirs

Thanks in advance!


-- 
Daniel Li