What Practice, with Respect to Motivating Sales Personnel, Is Most

What practice, with respect to motivating sales personnel, is most common in relationship-oriented countries like Japan?

A) Companies lay greater emphasis on incentives that are based on individual performance.
B) Companies do not allow local managers to decide the mix between base and incentive pay.
C) Commissions are measured by sales revenues generated by each employee.
D) Companies are not very tolerant of poor performers and fire them immediately.
E) Companies motivate sales representatives through frequent interaction with supervisors.