Which of the Following Was Described in Your Text as a Potential

Which of the following was described in your text as a potential disadvantage to using cloud computing services?

A) With cloud computing, it may be more difficult to get to the root of performance problems, like the unplanned outages that sometimes occur with Google's Gmail or Workday's human resources apps.
B) Requires greater numbers of IT professionals to support the strategy.
C) Requires greater reliance on outside consultants or contract employees.
D) Employees might over use applications, leading to higher costs.