Which of the Following Statements About Organizational Dependence on Computer-Based

Which of the following statements about organizational dependence on computer-based systems is appropriate?

A) it should be sensitive to failures, and should be shut down completely upon the detection of a failure;
B) In all possible cases of system failure, a backup should be available to avoid the organization come to a standstill.
C) It should ignore human errors, which are trivial and annoying to the system operation;
D) It only needs to be tested after its implementation to ensure the sensitivity it has to failures;
E) Test on a computer-based system in an organization provides little help to enhance the system's reliability;