When sociologists discuss power structures in the United States, which models represent the power elite?

The pluralist model, in which many competing groups have access to government so that no single group is dominant
Domhoff's model, in which three interest groups overlap but do not necessarily agree on specific policies
Mills's pyramid model, in which the corporate rich are on top and the exploited masses are on the bottom
The democratic model, in which all citizens express their power through voting

Domhoff's model, in which three interest groups overlap but do not necessarily agree on specific policies
Mills's pyramid model, in which the corporate rich are on top and the exploited masses are on the bottom