Answer:
A coalition of different interest groups.
Explanation:
A study of the political history of the United States would reveal that, in general, political parties have been a coalition of different interest groups.
This is because, throughout history, political parties have all been made up of different groups of individuals with vested interests who come together to form a political party.
21 is the answer, you just have to multiple the numbers
Although I believe both Henry and Irma could work for both a manufacturing company and the government as well, I consider more accurate the last statement "<em>They likely have the same employer since both are employed by a Manufacturing company</em>" even though I think they could also have the same or different employer too; its just that the previous statement fails in its predicate when implies that only one of them could work for a manufacturing company or the government; and I believe they both could work for either the government and a manufacturing company.
Since a M.Company could use environmental consulting services to produce <em>eco-friendly</em> items and control the quality of its production; and the government could issue environmental policies and be concerned about controlling the quality of its performance and the outcome of its projects.