Which of the Following Would Be Considered Disadvantages of a Distributed

Which of the following would be considered disadvantages of a distributed system?
1.There is a heavy reliance that the images are being sent to the correct locations.
2.Archive is considered a single point of failure.
3.Each workstation has a different worklist.

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