All of the Following Are Factors Contributing to the Rise

All of the following are factors contributing to the rise in the proportion of the labour force hired by temporary-help agencies, except that:

A) Employers need to replace a permanent employee who is temporarily absent.
B) Employers seek to develop stable, loyal, and productive labour forces.
C) Employers can avoid hoarding excess labour.
D) Employers require the services of an employee for only a short period.
E) Employers seek to reduce quasi-fixed labour costs.