[求助]OG11-41

   While larger banks can afford to maintain their own data-processing operations,many smaller regional and community banks are finding that the cost associated with upgrading data-processing equipment and with the development and maintaince of new products and technical staff are prohibitive.

   A cost associated with

   B costs associated with

   C costs arising from

   D cost of

   E costs of

为什么会选B 主语到底是哪个

  看OG解释看的晕晕的

   谢谢大家哈!!!

   好人有好报   

     本题的后半部分由“that” 引导了一个宾语从句。划线部分包括了把宾从的主语，要确定它是单or复，就要迁就从句的谓语“are”，从而判断主语是复数。将宾从从简就是the costs are prohibitive。

补充一点:associated with .......and with.........

加上三楼的解释,就选B