Which of the Following Is a Disadvantage of Using Temporary

Which of the following is a disadvantage of using temporary and contract workers?

A) Revocability of this method is lesser compared to other methods of avoiding labor shortage.
B) These kinds of workers cannot be hired through an agency.
C) These methods are a relatively slow solution to labor shortage.
D) These workers tend to be relatively less committed to the organization.
E) These workers work well in key jobs but not in those jobs that supplement the permanent employees.