Personal characteristics—such as age or gender—that are objective and easily obtained from personnel records are known as

Biographical characteristics is the correct answer.

Biographical characteristics are very objective and usually easily obtained from personnel records. Age, gender, lengths of tenure, race, disability and marital status are good examples of biographical characteristics. Even though these characteristics are very superficial, there are also deep-level abilities such as intellectual and physical abilities that are also examples of biographical characteristics.

is there a year set? the question is incomplete