Race or ethnicity; level of education; and sex of the head of the household (which honestly should not matter).
The largest proportion of federal revenues comes from taxes from the American citizen population. There are other large sources of revenue, but the current tax code makes for a great deal of revenue.
EU citizenship is available for qualifying citizens of EU member states. This citizenship gives the members the right to freely move and work within the EU member states.
Answer:
b. theory
Explanation:
Theory -
It is the piece of information , which is given on the basis of various facts , experiments and data , is referred to as a theory.
Publishing a theory require a lot of research and knowledge about the certain topic , so as to provide true and authentic information .
Hence, from the information given in the question,
The correct term is theory.