With Respect to HR Forecasting,when Would It Be Suitable to Hire

Multiple Choice

With respect to HR forecasting,when would it be suitable to hire external candidates instead of considering internal recruits?

A) if the organization can hire external candidates for a lower salary than internal recruits
B) if there is a novel,creative work process that differs substantially from current practice
C) if HR forecasters predict higher attrition and retirement in the short term
D) if none of the internal recruits is willing to switch jobs