OG11-11,OG11-23(OG10-26)首句成分问题

OG11-23(OG10-26)
    

26. Of all the possible disasters that threaten American agriculture, the possibility of an adverse change in climate is maybe the more difficult for analysis.

(A) is maybe the more difficult for analysis

(B) is probably the most difficult to analyze

(C) is maybe the most difficult for analysis

(D) is probably the more difficult to analyze（B）

(E) is, it may be, the analysis that is most difficult

OG11-11
    

11.   Warning that computers in the United States are not secure, the National Academy of Sciences has urged the nation to revamp computer security procedures, institute new emergency response teams, creating a special nongovernment organization to take charge of computer security planning.
    

(A) creating a special nongovernment organization to take
    

(B) creating a special nongovernment organization that takes
    

(C) creating a special nongovernment organization for taking
    

(D) and create a special nongovernment organization for taking（E）
    

(E) and create a special nongovernment organization to take
    

文中的黄色部分在句中是什么成分？作同位语？很困扰，请各位nn帮忙

第一个句子的黄色部分是状语，介词短语作状语，在这里前置了，用来强调范围和范畴

第二个句子的黄色部分是“分词独立结构”---分词独立结构：分词作状语时其逻辑主语与句子的主语一致! 常见的还有with 或者without 作状语或定语