Answer:
C) social reform
Step-by-step explanation:
The spoils system in politics or government is defined as the practice in which the winning government gives all the government jobs or federal employment to their supporters.
The spoil system was unable to do social reform because it was filled with corruption and political favoritism by federal officials. Bribes and abuse of political powers dominated social causes and the system was beneficial for government supporters only.
Hence, the correct answer is "C) social reform".