GB/T19001-2008标准4.2.4条款要求，组织应编制形成文件的程序，以规定记录的（）。

A.标识、检索

B.贮存、保护

C.保留和处置

D.保存期限和处理

Once the price of the land has been ______, we can go ahead to build the house.
A. agreed on B. agreed to C. agreed at D. agreed with