The correct way to ask for someone's name in Spanish is:
¿Cómo te llamas?
This question translates to "What is your name?" in English and is the informal way to ask someone their name.
So the correct response is:
- ¿Cómo te llamas?
The other options either have grammatical errors or inquire about the speaker's name (¿Cómo me llamo?) or the names of a group (¿Cómo nos llamamos?).