单选题 Attempts to persuade her stay after she felt insulted were ______.

【正确答案】 A

【答案解析】of no avail没用的，句子的意思是“她受到了侮辱后再劝她留下来已经没有用了。” out of focus未切题、不在焦点上；at a loss茫然，困惑；in no way决不。