Answer: The Civil Service system was instituted by (A) the Pendleton Act.
Explanation: The Pendleton Act was passed in 1883, that is to say during Chester A. Arthur's presidency<u>. It aimed at solving the problem of political patronage</u>, which was considered to be a form of corruption, by establishing the Civil Service system. <u>This system consisted in hiring people based on their merits</u> and not on their relationship with certain individuals that held positions in government. Therefore, potential employees now had to go through an exam.