You create a retention label that has a retention period of seven years. You need to ensure that documents containing a credit card number are retained for seven years. Other documents must not be retained. What should you create? 

Answer options:

A. a retention label policy of type publish
B. a retention policy that retains file automatically
C. a retention policy that deletes files automatically
D. a retention label policy of type auto-apply

D

Reference: https://docs.microsoft.com/en-us/microsoft-365/compliance/apply-retention-labels-automatically?view=o365-worldwide