By defeating Germanic invaders
Answer: A) High income intake versus debt
Explanation: Having a high income to debt ratio is actually good for an economy, boosting the GDP and ensuring a debt crisis doesn't occur. The Soviet Union, however had the opposite, with a high debt to income ratio.
Citizen's rights and responsibilities stem from the constitution as they were given to us by our creator according to the constitution. The European ideology claimed that all people are equal (in terms of caste, religion and status) and developed from the enlightenment era.
The citizenship can be obtained by anyone as long as they live in the country long and pay taxes and behave like anyone else would behave. The political thinkers such as John Locke came up with the same idea and thinking which heavily influenced the US constitution.