Which of these statements best describes the modern era

Modern history, the modern period or the modern era, is the linear, global, historiographical approach to the time frame after post-classical history. ... Contemporary history is the span of historic events from approximately 1945 that are immediately relevant to the present time.

So the 16th century to the 21st century

it provided for selection of government employees through competitive examinations. it also made it unlawful to fire or demote covered employees for political reasons or to require them to give political service or payment, and it set up a civil service commission to enforce the law.

explanation: