Answer:
a. External
Explanation:
There are only two types of locus of control and these are internal and external. In this scenario, John's locus of control would be external. This is because John is connecting various external forces that he cannot control, to the performance of the sales team. This indicates an external locus of control. If John where to instead attribute something such as hard work and training to his sales team's perfomance, then that would be considered an internal locus of control.
