下列属于变量分布数列的编制步骤的是（）。

A．将原始资料按大小顺序排列，确定总体中的最小值、最大值以及全距

B．确定编制数列的类型

C．确定组数和组距

D．确定组限

E．计算各组次数，编制分布数列表

—What's the matter with Tom?

—A letter from his wife ______ an attack of homesickness.[ ]

A. held up    

B. reached out      

C. picked up    

D. set off