—Have you found the information about the famous people            you can use for the report?

—Not yet. I'll search some on the Internet.        [ ]

A. who      

B. what        

C. whom        

D. which

按照物流作业的性质，配送中心主要机械装备系统包括装卸搬运、输送、检验、分货、储存、加工以及包装作业机械。( )