Question

What is citizenship?

the status of being a legally recognized resident
the act of moving from one nation to another
discrimination against newcomers to a country
participation in a naturalization ceremony

Answer 1

"the status of being a legally recognized resident" — This is the best choice. Citizenship is the legal status of being a member of a state or country, with associated rights and responsibilities. The other choices describe immigration, discrimination, or a ceremony, not the definition of citizenship.