Refer to Scenario: Pacific Health Care. When considering the issue of supplying personnel to meet PHC's HR demand, it is best for PHC to consider obtaining workers from two sources. What are these two sources? Question 16Select one: a. current employees and individuals previously employed by the organization b. internal and/or external human resource sources c. internal HR supply and individuals who receive training for subsequent promotion d. preferential consideration to PHC's own workforce through promotions and training