sat语法一道Many of blues great Bessie Smith's songs describe the experience of southern Black migrants,especially ‘the struggles of Black women to adjust ’to urban life in the northern United States.(A) the struggles of Black women to adjust

sat语法一道Many of blues great Bessie Smith's songs describe the experience of southern Black migrants,especially ‘the struggles of Black women to adjust ’to urban life in the northern United States.(A) the struggles of Black women to adjust
sat语法一道
Many of blues great Bessie Smith's songs describe the experience of southern Black migrants,especially ‘the struggles of Black women to adjust ’to urban life in the northern United States.
(A) the struggles of Black women to adjust
       (B) how Black women struggled at adjusting
       (C) when it was Black women struggling to adjust
       (D) Black women,they struggled with adjusting
       (E) for Black women and struggling to adjust
为什么选A不选B 不是动词优先吗?

sat语法一道Many of blues great Bessie Smith's songs describe the experience of southern Black migrants,especially ‘the struggles of Black women to adjust ’to urban life in the northern United States.(A) the struggles of Black women to adjust
看了一些外国学生的回答,我觉得以下这个比较有道理：
Struggles are experiences.The songs describe experiences,especially the experiences in which black women struggled to adjust to urban life in the northern U.S.The songs describe experiences,especially the struggles of black women to adjust....The sentence is stating what types of experiences (i.e.,struggles) southern Black migrants are especially experiencing.
In B,"struggled at adjusting" should be "struggled to adjust." "How Black women struggled to adjust" is not an experience,so you can't say,"Bessie Smith's songs describe the experiences,...especially how they struggled." The struggle itself is an experience,but how they struggled is just an attribute (description) of the struggle.

1）没有必要改
2）没有struggle at 的用法, struggle 可以跟with + n. / in doing/ to do

要填充的相当于解释前句话的experience.所以应该填的是名词性的结构