The correct answer is C) Chester Arthur.
The president that spent most of the Treasury's money making improvements, such as modernizing the navy was Chester Arthur. During his administration Congress passed the Sherman Antitrust Act, outlawing monopolies.
Chester Arthur (1829-1886) became the 21st President of the United States after the assassination of President James Garfield. His term was from 1881 to 1885. During his tenure, he decided to support people in need and reduce tariff rates in order to help the middle class and farmers who had insurmountable debts.