Sarah, a human resource executive at opexa inc., is assigned the task of recruiting employees to fill the vacant positions in the company. she is given a limited budget for this job. therefore, she does not want to incur high costs of recruitment and training. she also wants to use this as an opportunity to increase the morale of current employees. in this scenario, sarah . employee referrals
b. internal recruitment
c. external recruitment
d. line referrals