People try to avoid public transportation delays by using their own cars, and ____ this creates further

problems.        [ ]

A. in short    

B. in case          

C. in doubt    

D. in turn

大绳（）往往是因为新换钢丝绳未松劲、水龙头负荷轴承卡死、下钻过程中钻具严重旋转或大钩销子未打开所引起。