$21)$ A major reason for information systems project failures is:

A$)$ Problems with software engineers' competence

B$)$ Problems with communicating requirements

C$)$ Problems with capabilities of supporting technology

D$)$ All of the above

$22)$ Which of the following is NOT a source of requirements gathering for the systems analyst?

A$)$ Market conditions

B$)$ Users of the current system

C$)$ Documents

D$)$Observations