When access is granted to append or update a file to more than one user, the OS or file management system must enforce discipline. This is _________

When access is granted to append or update a file to more than one use

1.	When access is granted to append or update a file to more than one user, the OS or file management system must enforce discipline. This is _________
A.	Simultaneous access
B.	Compaction
C.	External Fragmentation
D.	Division
Answer» B. Compaction