大全-112

112.        An unusually strong cyclist can, it is hoped, provide enough power to set a new distance record for human-powered aircraft in MIT’s diaphanous construction of graphite fiber and plastic.

(A) can, it is hoped, provide enough power to set

(B) it is hoped, can provide enough power that will set

(C) hopefully can provide enough power, this will set

(D) is hopeful to set（A）

(E) hopes setting

答案为A,     实在搞不懂 it is hoped 放在中间,   

it is hoped是插入语,去掉不改变句子成分和结构.

it借代的是什么 ？ it is hoped 怎么翻译？