Who´s she? She´s yasmin.

[Avalon]

If I ask a person, "Who´s she?" and this person answers.." She´s yasmin." and stops talking there...it´s wrong , isn´t it?

[David L.]

Why do you think so? What do you think he should also say?

[claylavl]

This is Yasmin.

[Avalon]

I think he should say..This is Yasmin..or It´s Yasmin rather than have a pronoun and a proper noun in the same phrase.
If I he´d continued by saying "She´s Yasmin, a classmate of mine."
What do you think?

[David L.]

I see. Not only a question of good grammar, but good manners as well!