Which of these statements about Service Desk staff is CORRECT?

A.
Service Desk staff should be recruited from people who have high levels of technical skilltominimise the cost of training them

B.
Service Desk staff should be discouraged from applying for other roles as it is more cost effective to keep them in the role where they have been trained

C.
The Service Desk can often be used as a stepping stone for staff to move into other more technical or supervisory roles

D.
The Service Desk should try to have a high level of staff turnover as the training requirements are low and this helps to minimise salaries