Answer:
The correct answer is ¿De qué nacionalidad eres?
Step-by-step explanation:
The nationality of a person tells us in which country he was born.
This is one of the most common questions you should learn when you start studying Spanish. The question ¿De qué nacionalidad eres? it is valid for both a man and a woman.
Other common questions in Spanish to ask a person you just met are:
¿Dónde vives?
¿Cuál es tu nombre?
¿Qué edad tienes?