!Hola!
The Answer is <u>Cuánta</u> which means How much!
Hope this helps! :D
Answer:
It's the third option
Explanation:
Los papás de Matilde <em><u>S</u></em><em><u>O</u></em><em><u>N</u></em><em><u> </u></em>de Guatemala.
porque está hablando en plural.