As to who is to be hired, it is the Human Resources Department_has the final say. A) whose B) those

✅ 正确答案：D) that

题干：

As to who is to be hired, it is the Human Resources Department ___ has the final say.

这句话的结构是一个典型的 强调句（It is ... that ...）。

It is + 被强调部分 + that + 其他成分

  这个结构叫做 强调句型（Cleft Sentence），

用来强调句子中的某个部分。

原句的核心意思是：

The Human Resources Department has the final say as to who is to be hired.

（关于谁被录用，人力资源部有最终决定权。）

要强调 “The Human Resources Department”，

就变成：

It is the Human Resources Department that has the final say as to who is to be hired.