The Purpose of a Waiting Period Between Holding a Government

The purpose of a waiting period between holding a government post and a lobbying position is to

A) allow individuals a period of recuperation after the high demands of public service.
B) keep the number of lobbyists as low as possible.
C) keep people from taking unfair advantage of the contacts and knowledge they gained from public service.
D) provide relief for a strained federal budget.
E) provide time for the extensive background check many interest groups require.