What was a key reason Chester Arthur was NOT re-nominated by the Republicans for a second presidential term?

A.)He wanted to raise tariffs to an all-time high.
B.)He was involved in bribery scandals during his term.
C.)He was a reformer who tried to eliminate patronage jobs.
D.)He began a campaign to repeal the Sherman Silver Purchase Act.
E.)He believed in rewarding those who helped his election campaign.