Thomas Is a Network Expert, Having Mastered the Finer Points

Multiple Choice

Thomas is a network expert, having mastered the finer points of network structure, topology, and geographical scope. He has built many different types of networks at home, school, and work. He is now designing a home network for his friend.
-Thomas's friend has indicated that he will accept the system that Thomas is constructing for him.However,he is concerned about security risks and wants to know what limits he can place on the system.Which of the following is NOT a true statement that Thomas can make to his friend?

A) He can assign permissions to files.
B) He can limit sharing to specific people.
C) He can use a homegroup to limit what is shared on the network.
D) He can't remove sharing from files that he no longer wants to share.