Answer:
D.A political party wins an election and gives jobs to its supporters.
Step-by-step explanation:
In a spoil system, a certain political candidates will openly offer some sort of incentives for the people who support them during the election. These 'incentives' could be something like money, position within the government, luxury goods, etc.
In the past, the spoil system was unregulated. This allowed many people from the private sectors openly support a certain candidates in the term of funding and in return will receive some sort of bills that are favorable to their companies.