问题详情

Whatisthetextmainlyabout？
A．CustomerServiceinSNCF．
B．CustomerserviceinSwissRailways．
C．Thewriter’sbadimpressionofInternettickets．
D．Thewriter’sexperienceinbuyingFrenchrailtickets．
请帮忙给出正确答案和分析，谢谢！