Which of the Following Would Be Considered Advantages of a Client/server-Based

Which of the following would be considered advantages of a client/server-based system?
1) Any image can be seen anywhere without interventions.
2) Even if the archive goes down, images can still be seen at all workstations.
3) Only one person can open a study with the intent to read it, and others will be told that the study is being read by someone else.

A) 1 and 2
B) 1 and 3
C) 2 and 3
D) 1, 2, and 3