Answer: Yo soy de Argentina.
Explanation:
We can start by ruling out 'vienes' which means 'you come', as Diana is speaking in first-person. For the same reason, 'son' and 'es' will not work, as they respectively translate to 'they/them are' and 'he/she/it is'. 'Soy' is in first-person, so we can use that.
