The Phenomenon of ______________ Is Referred to as the "Revolving

The phenomenon of ______________ is referred to as the "revolving door".​

A) ​former elected officials taking lobbying jobs
B) ​movement of experienced workers from one interest group to another
C) ​interest group success on one issue, followed by identification of a new issue, followed by success on that issue, etc.
D) ​interest group officials achieving such a high profile that they are then elected to public office
E) ​elected officials having to deal with a seemingly endless series of interest groups on some topics