Joe's Recovery Point Objective (RPO) Is Set to 24 Hours

Joe's Recovery Point Objective (RPO) is set to 24 hours. What does this mean?

A) Joe's people must be in the office performing the process 24 hours after a disaster or disruption.
B) Joe has 24 hour to decide what to do in event of an emergency.
C) No more than 24 hours of data can be lost.
D) All data related to the process must be recovered within 24 hours.
E) Joe's process must be restored after 24 hours.