Which of the Following Is a Drawback (Disadvantage) to Enterprise

Multiple Choice

Which of the following is a drawback (disadvantage) to enterprise resource planning systems (ERPs) ?

A) They are expensive but usually easy to implement.
B) They require employees be trained but usually employees adjust quickly and productivity remains high.
C) They are complex, expensive, and difficult to implement.
D) They continually evolve to take advantage of new technologies.