Question

1. do you remember what verb is used when talking about nationalities?

ser
estar
vivir

Explanation:

In Spanish, when talking about nationalities, the verb "ser" is used. "Ser" is used for permanent or inherent characteristics like nationality, while "estar" is for temporary states or locations, and "vivir" means "to live" which is not used for stating nationalities.

Answer:

C. Ser