Why are store managers often the last to hear complaints？A．Most customers won"t bother to

Why are store managers often the last to hear complaints？

A．Most customers won"t bother to complain even if they have had unhappy experiences.

B．Customers would rather relate their unhappy experiences to people around them.

C．Few customers believe the service will be improved.

D．Customers have no easy access to store managers.

请帮忙给出正确答案和分析，谢谢！