Time left $2$:$12$:$40$

Your supervisor wants your help in improving your company's recruitment efforts, in order to more effectively recruit individuals who are likely to become long$-$term employees. Based on research by Zottoli and Wanous $(2000),$ which of the following recruitment sources would you recommend to your supervisor?

a$.$ walk$-$ins, employment agencies, and "headhunters"

b$.$ newspaper ads, rehired workers, and facebook

c$.$ employment agencies, school placement services, newspaper ads

d$.$ referrals by current employees, in$-$house job postings, and rehired workers

e$.$ None of the above