Respuesta :

maldecido
It should be the first option: ancho de banda.  The rest are qualities of the phone. 
facundo3141592

Answer: Ancho de banda

Explanation: We need to see the relevant feature when choosing an internet service provider:

The options are:

Ancho de banda (Wavelenght, directly related to the speed of the service)

Cámara web (Webcam)

Micrófono (Microphone)

Parlantes (Speakers)

The only option related to the internet service is the first one, so the answer is "Ancho de banda"