Which certification exam does not require HR experience prior to taking the exam? a. Professional in Human Resources (PHR) b. Senior Professional in Human Resources (SPHR) c. Associate Professional in Human Resources (aPHR) d. Global Professional in Human Resources (GPHR) e. Professional in Human ResourcesInternational (PHRi)In the staffing function, _____ is the stage where HR officers find people to fill open positions. a. development of a staffing plan b. recruitment c. development of a retention plan d. compensation e. selection