The purpose of the RnRMgr task is which of the following?

A.
Create an individual document for each mail user in the new RnRBusytime database with busytime marked

B.
Watch for reservation requests in an R&R database and to process them in the order in which they arrive or were created

C.
Scan all the mail users, rooms and resources in the domain and populate the busytime database with the freetime for each one

D.
Obtain a list of all rooms and resources across the local and foreign domains and consolidate the freetime into a single busytime database on a daily basis