Answer :
The correct one would be " me llamo Isabel" You would have to conjugate the verb llamar. (Which is 'to call') Llamas is in the tú form (the 'you' form).
So the other the first one is saying
My your name is Isabel.
The second says
Your name is Isabel
The third says
Your my name is Isabel
And the fourth says
My name is Isabel.
So the other the first one is saying
My your name is Isabel.
The second says
Your name is Isabel
The third says
Your my name is Isabel
And the fourth says
My name is Isabel.
