A company's analytics manager wants all reports to be delivered once every seven days. Which of the following is the best delivery method?

Recurring delivery is the best method for reports that need to be sent out at regular, predefined intervals, such as daily, weekly, or monthly. This automated schedule ensures consistent delivery without manual intervention, perfectly matching the requirement for reports every seven days.

Ad hoc delivery refers to reports generated and sent on an as-needed, one-off basis, which does not fit the requirement for regular, weekly delivery.

Custom delivery describes a tailored delivery mechanism, but it doesn't inherently imply a recurring schedule; a recurring schedule would be a type of custom delivery.

Snapshot refers to a static copy of data at a specific point in time, not a method of report delivery itself, though a recurring report might deliver snapshots.