Answer:
C. A person born abroad who has successfully applied for American citizenship
Step-by-step explanation:
In order for a person to become a naturalized American citizen it has to born in another country and have a citizenship of another country, while in meantime managing to successfully apply for American citizenship. The process of naturalization has several steps and there a re multiple conditions that have to be fulfilled. Some of the conditions are that the person has to be 18 or more years of age, has lived in the US for at least 5 years, has permanent place of stay in part of the US for at least three months before applying, having basic knowledge of speaking and writing in English language etc.