Fundjuhl总结的GMATprep语法题。我做的时候，知道不是D就是E，但是不太明白to collect中文要表达的是什么意思？请问问什么选择D，而不选择E？谢谢

23. Unlike most severance packages, which require workers to stay until the last day scheduled to collect, workers at the automobile company are eligible for its severance package even if they find a new job before they are terminated.

A. the last day scheduled to collect, workers at the automobile company are eligible for its severance package

B. the last day they are scheduled to collect, workers are eligible for the automobile company's severance package

C. their last scheduled day to collect, the automobile company offers its severance package to workers

D. their last scheduled day in order to collect, the automobile company's severance package is available to workers

E. the last day that they are scheduled to collect, the automobile company's severance package is available to workers

their last scheduled day与the last day that they are scheduled

的区别