GWD5-Q1

GWD5-Q1:

So dogged were Frances Perkins’ investigations of the garment industry, and her lobbying for wage and hour reform was persistent, Alfred E. Smith and Franklin D. Roosevelt recruited Perkins to work within the government, rather than as a social worker.

A.      and her lobbying for wage and hour reform was persistent,

B.      and lobbying for wage and hour reform was persistent, so that

C.      her lobbying for wage and hour reform persistent, that

D.      lobbying for wage and hour reform was so persistent,

E.       so persistent her lobbying for wage and hour reform, that

请问这里的E是不是要加and才好啊？我怎么感觉2个句子没有连词啊》

我也不懂。。。。怎么用排除法呢