Which of the Following Is a Best Practice Used by Firms

Which of the following is a best practice used by firms that develop effective global HR systems?

A) creating a global network of specialists to help create a new HR system
B) standardizing the specific methods used to screen and evaluate applicants
C) allowing HR managers to devise locally appropriate recruiting policies
D) establishing HR policies at the firm's headquarters to avoid conflict
E) developing a single compensation and benefits package for new hires