Answer and Explanation:
Garfield modified the inspection with the courier services, allowing cases of corruption to be tackled and these services to work better. He also invested in the American navy.
Arthur maintained investment in the navy and encouraged the creation of public services that were unavailable or poorly structured. He also fought xenophobia, mainly in relation to the Chinese who were forbidden to become American citizens and even to immigrate to the USA. He established policies for the Chinese to be accepted on the spot.
Cleveland invested in supporting big businessmen who could move the economy; he created policies that reduced government spending, to promote lower tax collection, which unfortunately did not work.